Yakovlev V.I. , Stavrev P.V. , Serdyukov A.D. Unstable particles in the cascades initiated by single hadrons at energies above 5 TeV in the calorimeter with lead absorber. I-93843 Intern. cosmic ray conf. Aug. 2-15, 1987. Moscow, USSR. Conf.Papers. , Vol.6 , с. P.356-359 , 01.1987 Dremin I.M. , Yakovlev V.I. , Madigozhin D.T. , Serdyukov A.D. Tien - Shan effect - experiment and theory. I-93843 Intern. cosmic ray conf. Aug. 2-15, 1987. Moscow, USSR. Conf.Papers. , Vol.6 , с. P.360-363 , 01.1987