Zhdanov G.B. , Tretyakova M.I. , Erofeeva I.N. , Mischenko L.G. , Murzin V.S. , Sarycheva L.I. , Maslennikova N.V. , Chernyavsky M.M. Features of the pion-nucleus interaction at energies of 200 GeV and GeV. Acta phys.acad.sci.hung. , Vol.29,Suppl.3 , с. P.225-229 , 01.1970