| 2007 | Bojidarka Koleva, Tsanko Tsanev, Tsonko Kolev, Heike Mayer-Figge, William S. Sheldrick: 3,4-Diaminopyridinium hydrogen squarate. In: Acta Cryst., 2007, 03356 |
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| 2002 | Tsonko Kolev, Z. Glavcheva, D. Yancheva, M. Schürmann, D. Chr. Kleb, H. Preut, P. Bleckmann: Cystal Structure of 2-{5,5-Dimethyl-3-[2-(2,4-Dimethoxyphenyl)Vinyl]Cyclohex-2-Enylidene}Malononitrile. In: Acta Cryst. E , 2002, 01172 |
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| 2001 | Tsonko Kolev, Zornitza Glavcheva, Denitsa Yancheva, Markus Schürmann, Dirk-Christian Kleb, Hans Preut, Paul Bleckmann: 2-3-[2-(4-Hydroxyphenyl)vinyl]-5,5-dimethylcyclohex-2-en-1-ylidene-malononitrile. In: Acta Cryst., 2001, 0561-0562 |
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| 2001 | Tsonko Kolev, Zronitha Glavcheva, Denitsa Yancheva, Markus Schürmann, Dirk-Christian Kleb, Paul Bleckmann: 2-3[2-(1H-Indol-3-yl)vinyl]-5,5-dimethylcyclohex-2-enylidenemalononitrile. In: Acta Cryst., 2001, 0760-0761 |
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| 2001 | Tsonko Kolev, D. Yancheva, D.-Chr. Kleb, M. Schürmann, Z. Glavcheva, H. Preut, P. Bleckmann: Crystal structure of 2-{3-[2-(3-ethoxy-4-methoxy-phenyl)-vinyl]-5,5-dimethyl-cyclohex-2-enylidene}-malononitrile, C22H24N2O2. In: Z. Kristallogr. NCS, 2001, 67-68 |
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| 2001 | Tsonko Kolev, D. Yancheva, Z. Glavcheva, M. Schürmann, D.-Chr. Kleb, H. Preut, P. Bleckmann: Crystal structure of 3-methoxy-4-hydroxybenzylidene-malononitrile, C11H8N2O2. In: Z. Kristallogr. NCS, 2001, 239-240 |
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| 2001 | Tsonko Kolev, D. Yancheva, M. Schürmann, D.-Chr. Kleb, H. Preut, P. Bleckmann: Crystal structure of 4-[(4-N,N-dimethylaminophenylene)amino]-3-ethoxy-3-cyclobutene-1,2-dione, C14H16N2O3. In: Z. Kristallogr. NCS, 2001, 241-242 |
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| 2001 | Tsonko Kolev, D. Yancheva, D. Chr. Kleb, M. Schürmann, H. Preut, P. Bleckmann: Crystal structure of 4-benzoylpyridinium-1-squarate, C16H9NO4. In: Z. Kristallogr. NCS, 2001, 65-66 |
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| 2001 | Tsonko Kolev, D. Yancheva, Z. Glavcheva, M. Schürmann, D.-Chr. Kleb, H. Preut, P. Bleckmann: Crystal structure of 4-hydroxy-3-methoxybenzaldehyde-4-nitrophenyl-hydrazone, C14H13N2O4. In: Z. Kristallogr. NCS, 2001, 237-238 |
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| 2001 | Tsonko Kolev, D. Chr. Kleb, D. Yancheva, M. Schürmann, H. Preut, P. Bleckmann: Crystal structure of cesium 4,6-dinitroresorcinolate, CsC6H3O2(NO3)2. In: Z. Kristallogr. NCS, 2001, 63-64 |
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| 2001 | Tsonko Kolev, Z. Glavcheva, D. Yancheva, M. Schürmann, D. Chr. Kleb, H. Preut, P. Beckmann: Cystal Structure Of 2-{5,5-Dimethyl-3-[2-(2-Methoxyphenyl)Vinyl]Cyclohex-2-Enylidene}Malononitrile . In: Acta Cryst. E, 2001, 01156 |
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| 2001 | Tsonko Kolev, Z. Glavcheva, M. Schürmann, D. Chr. Kleb, H. Preut, P. Bleckmann: Monoclinic Form Of 2-{5,5-Dimethyl-3-[2-(2,4,6-Trimethoxyphenyl)Vinyl]Cyclohex-2-Enylidene}Malononitrile . In: Acta Cryst. E, 2001, 0964 |
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| 2001 | Tsonko Kolev, Z. Glavcheva, D. Yancheva, M. Schürmann, D. Chr. Kleb, H. Preut, P. Bleckmann: Triclinic Form Of 2-{5,5-Dimethyl-3-[2-(2,4,6-Trimethoxyphenyl)Vinyl]Cyclohex-2-Enylidene}Malononitrile. In: Acta Cryst. E, 2001, 0966 |
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| 2000 | Tsonko Kolev, M. Berkei, C. Hirsch, H. Preut, P. Bleckmann, V. Radomirska: Crystal structure of 4,6-dinitroresorcinol, C6H4N2O6. In: Z. Kristallogr. NCS, 2000, 483-484 |
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| 1999 | Tsonko Kolev, Z. Glavcheva, R. Stahl, H. Preut, P. Bleckmann, V. Radormirska: Crystal structure of L-canavanine hydrogensquarate semihydrate, C26H34N8O23. In: Z. Kristallogr. NCS, 1999, 193-194 |
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| 1999 | Tsonko Kolev, Z. Glavcheva, M. Schürmann, H. Preut, P. Bleckmann, Va. Radormirska: Crystal structure of bis[R-(+)-1-(1-naphthyl)ethylammonium]squarate, [C12H14N]2-C4O4. In: Z. Kristallogr. NCS, 1999, 187-188 |
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| 1998 | Tsonko Kolev, R. Stahl, H. Preut, P. Bleckmann: Crystal structure of L-(+)-serinium hydrogensquarate, C7H9NO7. In: Zeitschrift für Kristalographie - New Crystal Structures, 1998, 169-170 |
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| 1998 | Tsonko Kolev, R. Stahl, H. Preut, L. Koniczek, P. Bleckmann: Crystal structure of bis(L)-(-)-asparaginium hydrogensquarate) monohydrate, (C8H10N2O7)2 x H20. In: Zeitschriftt für Kristallographie - New Crystal Structures, 1998, 167-168 |
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