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| | Tajovský, K (Site not responding. Last check: 2007-10-29) |
 | | Vítězslav Bryja, Laboratory of Molecular Embryology, Mendel University of Agriculture and Forestry in Brno and Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Zemědělská 1, 613 00 Brno, Czech Republic. |
 | | Hana Fojtová, Department of Zoology and Apiculture, Mendel University of Agriculture and Forestry, Zemědělská 1, 613 00 Brno, Czech Republic. |
 | | Piotr Skubała, University of Silesia, Department of Ecology, Bankowa 9, 40-007 Katowice, Poland. |
| www.upb.cas.cz /proc6.htm (1440 words) |
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