by LITKOVETS ALEKSEJ K,SU, KOLOKOLTSEVA IRINA G,SU, LOBKOV VASILIJ D,SU, KARLIN ALEKSANDR V,SU, DEMIDOVA RAISA ,SU, KOLMAKOV OLEG A,SU, AGAPITOVA OLGA V,SU, DOLININA TATYANA V,SU, NIKOLAEV YURIJ ,SU
Year of Publication 28.02.1978