... Left to right: V.N.Penev, A.M.Baldin, and P. I.Zarubin. E.I.Tamm (left), A.M.Baldin and V.P.Dzelepov at the International Symposium devoted to the 50th Anniversary of the Discovery of Phase Stability Principle by V.I.Veksler and E.M.Mc.Millan held in the P.N.Lebedev Physics Institute, 1994. ... At a conference in Dallas (USA) A.M.Baldin, V.D.Kekelidze, and A.N.Sissakian. 1992г. Left to right: Professor Fukui (Japan) , one of the authors of the spark chamber methods, A.I.Malakhov, and A.M.Baldin. ...