Berri R Ya

Publications in Math-Net.Ru

1. On an integer invariant of binary forms of the fourth order
   
   Uspekhi Mat. Nauk, 7:3(49) (1952),  125–130
2. An investigation of the cone of positive elements in a partially ordered space
   
   Mat. Sb. (N.S.), 23(65):3 (1948),  419–440