Dobrotin N.A. , Zatsepin G.T. , Slavatinsky S.A. , Nikolsky S.I. Beginning of high-energy physics in cosmic rays. Early history of cosmic ray studies , с. P.225-237 Zatsepin G.T. , Rakobolskaja I.V. , Dubrovina S.A. , Nikolsky S.I. , Amineva T.P. , Cherdyntseva K.V. , Christiansen G.B. , Ivanenko I.P. , Ivanova M.A. , Kalmykov N.N. , Mandritskaya K.V. , Mursina E.A. , Osipova E.A. , Sokolskaya N.V. , Varkovitskaya A.Y. Energy spectra and angular distributions of high-energy muons. II-17605 12th Intern. Conf. on Cosmic Rays. Hobart. August 16-25,1971. Conf.papers ... , с. P.2387-2396 Skobelzyn D.V. , Zatsepin G.T. , Miller V.V. The lateral extension of Auger showers [Пространственное расхождение ливней Оже]. Phys.Rev. , Vol.71,N5 , с. P.315-317 , 01.1947 Zatsepin G.T. , Nikolsky S.I. , Khristiansen G.B. Extensive air showers of cosmic radiation. I-8632 Intern. Conf. on Cosmic Rays. Jaipur, december 1963. Proc. , Vol.4 , с. P.100-126 , 01.1963 Zatsepin G.T. , Nikishov A.I. On the role of the photonuclear mechanism in asymmetric jet formation. II-8632 Intern. conf. on cosmic rays. Jaipur, Dec. 1963. Proc. V.5. High energy interactions. / Ed. R.R.Daniel, P.J.Lavakare, M.G.K.Menon a.o. , Vol.5 , с. P.26-30 , 01.1963