| 2010 | Nikolay Kolev Vitanov: Application of simplest equations of Bernoulli and Riccati kind for obtaining exact traveling-wave solutions for a class of PDEs with polynomial nonlinearity. In: Communications in Nonliner science and Numerical Simulation, 2010, 2050-2060 |
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| 2010 | Nikolay Kolev Vitanov and Zlatinka I. Dimitrova: Application of the method of simplest equation for obtaining exact traveling-wave solutions for two classes of model PDEs from ecology and population dynamics. In: Communications in Nonlinear Science and Numerical Simulation, 2010, 2836-2845 |
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| 2010 | Nikolay Kolev Vitanov, Zlatinka I. Dimitrova and Holger Kantz: Modified method of simplest equation and its application to nonlinear PDEs. In: Applied Mathematics and Computation, 2010, 2587-2595 |
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| 2010 | Nikolay Kolev Vitanov: Optimum fields and bounds on heat transport for nonlinear convection in rapidly rotating fluid layer. In: European Physical Journal B, 2010, 265-273 |
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| 2009 | Nikolay Kolev Vitanov: Bounds for heat transport for convection in rotating fluid layer. In: Journal of Theoretical and Applied Mechanics, 2009, 11-20 |
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| 2009 | Nikolay Kolev Vitanov: Bounds for heat transport in rapidly rotating fluid layer. In: Proceedings of the Bulgarian Academy of Sciences, 2009, 709-716 |
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| 2009 | Nikolay Kolev Vitanov, Ivan P. Jordanov, Zlatinka Dimitrova: On nonlinear dynamics of interacting populations. Coupled kink waves in a system of two populations.. In: Communications in NonlinearScience and Numerical Simulations, 2009, 2379-2388 |
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| 2009 | Nikolay Kolev Vitanov, Ivan P. Jordanov, Zlatinka I. Dimitrova: On nonlinear population waves. In: Applied Mathematics and Computatuion, 2009, 2950-2964 |
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| 2009 | Nikolay Kolev Vitanov, Norbert Hoffmann: On probability of rogue waves in the North sea. In: Proceedings of the Bulgarian Academy of Sciences, 2009, 185-191 |
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| 2009 | Nikolay Kolev Vitanov: Optimum theory of turbulence: Ideas, methods and results. In: Journal of Theoretical and Applied mechanics, 2009, 31-62 |
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| 2009 | Katheleen Ashenfelter, Jennifer Waddel, Steven Boker, Nikolay Kolev Vitanov: Spatiotemporal symmetry and multifractal structure of head movements during diadic conversation. In: Journal of Experimantal Psychology: Human Prception and Performance, 2009, 1072-1091 |
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| 2009 | Nikolay Kolev Vitanov: The elite and its education. In: Science (Sofia), 2009, 73 -75 |
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| 2008 | Nikolay Kolev Vitanov: Differentiation and integration of the scientific kniowledge in the boundary area between natural and social sciences: New scientific topics. In: Science(Sofia), 2008, 33-36 |
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| 2008 | Nikolay Kolev Vitanov and Stoicho Panchev: Generalization of the model of conflict between two armed groups. In: Comptes rendus de l'Academie bulgare des Sciences, 2008, 1121-1126 |
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| 2008 | Stoicho Panchev and Nikolay Kolev Vitanov: Mathematical models of intergroup conflicts. In: Comptes rendus de l'Academie bulgare des Sciences, 2008, 993-1002 |
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| 2008 | Nikolay Kolev Vitanov, Kenshi Sakai, Zlatinka I. Dimitrova: SSA,PCA,TDPSC,ACFA:Useful combination of methods for analysis of short and stationary time series. In: Chaos Solitons and Fractals, 2008, 187-202 |
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| 2008 | Nikolay Kolev Vitanov, Zlatinka Dimitrova, Stojcho Panchev: Social dynamics without formulas. Complex systems from man to civilisation. Publishing House of the Bulgarian Academy of Sciences, 2008 |
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| 2007 | Nikolay Kolev Vitanov, Kenshi Sakai, Ivan P. Jordanov, Shunsuke Managi, Katsuhiko Demura: Analysis of the Japan government intervention on the domestic agriculture market. In: Physica A, 2007, 330-335 |
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| 2007 | Stojcho Panchev, Tatyana Spassova,Nikolay Kolev Vitanov: Analytical and numerical investigations of two families of Lorenz-like dynamical systems. In: Chaos Solitons and Fractals, 2007, 1658-1671 |
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| 2007 | Nikolay Kolev Vitanov: Physics and Social Dynamics. In: Physics, 2007, 71-76 |
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| 2007 | Nikolay Kolev Vitanov: Shall we survive. In: Science (Sofia), 2007, 3-7 |
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| 2007 | Kenshi Sakai, Shunsuke Managi,Nikolay Kolev Vitanov, Katsuhiko Demura: Transition of Chaotic Motion to a Limit Cycle by Intervention of Economic Policy: An Empirical Analysis in Agriculture. In: Nonlinear Dynamics, Psychology and Life Sciences, 2007, 253-265 |
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| 2006 | Nikolay Kolev Vitanov, Zlatinka I. Dimitrova, Ivan P. Jordanov: Application of Physics Methods to Social phenomena. In: Ivan Zhelyazkov, Advances of Physics and Astrophysics of the 21st century. Heron Press, 2006. 123-128 |
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| 2006 | Nikolay Kolev Vitanov, Khristo Tarnev, Holger Kantz: Hoelder-exponent-based test for long-range correlations in pseudorandom sequences. In: Journal of Theoretical and Applied Mechanics, 2006, 47-64 |
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| 2006 | Nikolay Kolev Vitanov: How Bulgarian researchers cope with the EU scientific systems - problems and perspectives. In: Science (Sofia), 2006, 18-23 |
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| 2006 | Nikolay Kolev Vitanov and Elka Yankulova: Multifractal analysis of the long-range correlations in the cardiac dynamics of Drosophila Melanogaster. In: Chaos, Solitons and Fractals, 2006, 768-775 |
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| 2006 | Nikolay Kolev Vitanov, Zlatinka I. dimitrova, Holger Kantz: On the trap of extinction and its elimination. In: Physics Letters A, 2006, 350-355 |
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| 2006 | Nikolay Kolev Vitanov: The Empire of Knowledge I: Japan Scientific Policy. In: Science (Sofia), 2006, 12-21 |
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| 2006 | Nikolay Kolev Vitanov: The Empire of Knowledge II: Reforms in Japan Scientific and Technological Systems. In: Science (Sofia), 2006, 14-24 |
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| 2005 | Nikolay Kolev Vitanov, Zlatinka I. Dimitrova, Stojcho panchev: Challenges to Contemporary Physics: Econophysics and Sociophysics. In: Science (Sofia), 2005, 13-23 |
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| 2005 | Syefan Hegamann, Anja Kusterer, Nikolay K. Vitanov, Veneta Todorova: Investigation of Alexander's law in human caloric nystagmus. First results.. In: Comptes rendus de l'Academie bulgare des Sciences, 2005, 457-462 |
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| 2005 | Nikolay Kolev Vitanov: Numerical upper bounds on convective heat transport in a layer of fluid of finite Prandtl number: Confirmation of Howard's analytical asymptotic single-wave-number bound. In: Physics of Fluids, 2005, 105106-1-105106-13 |
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| 2005 | Stoicho Panchev and Nikolay Kolev Vitanov: On asymptotic properties of some complex Lorenz-like systems. In: Journal of the Calcutta Mathematical Society , 2005, 121-130 |
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| 2005 | Nikolay Kolev Vitanov, Kenshi Sakai, Elka D. Yankulova: On correlations and fractal characteristics of time series. In: Journal of Theoretical and Applied Mechanics, 2005, 73-90 |
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| 2005 | Nikolay Kolev Vitanov, Zlatinka I. Dimitrova, Stoicho Panchev: Population Dynamics and National Sequrity. Marin Drinov Publishing House of the Bulgarian Academy of Sciences, 2005 |
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| 2005 | Holger Kantz, Detlef Holstein, Mario Ragwitz, Nikolay K. Vitanov: Predicting probabilify for stochastic processes with local Markov property. In: J. Peinke, A. Kittel, S. Barth, M. Oberlack, Progress in Turbulence. Springer, 2005. 95-98 |
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| 2005 | Zlatinka I. Dimitrova, Nikolay K. Vitanov: Shilnikov chaos in a generalized system for modelling dynamics of competing populations. In: Comptes rendus de l'Academie bulgare des Sciences, 2005, 257-265 |
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| 2005 | Nikolay K. Vitanov: Upper bpunds on the heat transport in a heated from below fluid layer.. In: J. Peinke, A. Kittel, S. Barth, M. Oberlack, Progress in Turbulence. Springer, 2005. 37-40 |
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| 2004 | Zlatinka I. Dimitrova, Nikolay Kolev Vitanov: Chaotic pairwise competition. In: theoretical Population Biology, 2004, 1-12 |
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| 2004 | Holger Kantz, Detlef Holstein, Mario Razwitz, Nikolay Kolev Vitanov: Extreme events in surface wind: Predicting turbulent gusts. In: S. Boccaletti, B. J. Gluckman, J. Kurths, L. M. Pecora, R. Meucci, O. Yordanov, Experimental chaos. AIP conference proceedings 742. American Institute of Physics, 2004. 315-324 |
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| 2004 | Holger Kantz, Detlef Holstein, Mario Ragwitz and Nikolay Kolev Vitanov: Markov chain model for turbulent wind speed data. In: Physica A, 2004, 315-321 |
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