by RUBENS YURIS P,SU, SKUYA NIKOLAJ A,SU
Year of Publication 23.05.1982

by DAUGAVIETIS MARIS O,SU, KUZNETSOV SERGEJ YU,SU, RUBENS YURIS P,SU, SELEZNEV YURIJ V,SU, TREJMANE RITA A,SU, ROSHCHIN VIKTOR I,SU
Year of Publication 15.01.1993

by ILCHENKO BORIS G,SU, SITKIN STANISLAV I,SU, PUKENS VADIM A,SU, RUBENS YURIS P,SU, SKUYA NIKOLAJ A,SU, POKROTNIEK YURIS YA,SU
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