1. Linear Optimal Control;Anderson,1971
2. Synthesis and Analysis of Movement of Flighting Apparatus;Gorbatenko,1976
3. The S-procedure and duality theorems for nonconvex problems of quadratic programming;Fradkoff;Vestnik Leningrad. Univ.,1973
4. The S-procedure in nonlinear control theory;Yakubovich;Vestnik Leningrad Univ.,1971
5. The S-procedure in nonlinear control theory;Yakubovich;Vestnik Leningrad Univ. Math.,1977