Dobrotin N.A. , Dovzenko O.. , Zacepin V.. , Murzina E.. , Nikolskij S.I. , Rakobolskaja I.V. , Tukis E.. Combined method of investigation of the extensive air showers. Nuovo Cimento , Vol.8,suppl.N2 , с. C.612-622 , 01.1958 Murzina E.. , Nikolsky S.I. , Yakovlev V.I. High energy nuclear-active particles and extensive air showers which accompany them. I-7256 Intern. conf. on cosmic rays and the earth strom. III. Cosmic rays. Kyoto, 4-15 Sept., 1961 , Vol.3 , с. P.203-204 , 01.1962 Murzina E.. , Rakobolskaja I.V. , Nikolsky S.I. , a.o. , Amineva T.P. , Ivanenko I.P. , Ivanova M.A. , Mandritskaya K.V. , Osipova E.A. , Sokolskaya N.V. High energy muon generation in cosmic rays. 13-th Intern. cosmic ray conf. Denver , Vol.3 , с. C.1788-1796 , 01.1973