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Application filed by Anna F Shelkova, Sidaravichyus Ionas Donatas B, Nijole P Astrauskene, Sigita A Taurajtene, Yuozapas Yu Balchyunas, Yuozas P Varanetskas, Larisa K RabotkofiledCriticalAnna F Shelkova
Priority to SU884467071ApriorityCriticalpatent/SU1654773A1/en
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Publication of SU1654773A1publicationCriticalpatent/SU1654773A1/en