LYAPUNOV STABILITY OF SCALAR CHARGED SOLITONS СтатьяKumar A., Nisichenko V.P., Rybakov Yu.P.Soviet Physics Journal. Том 24. 1981. С. 53-56
SURGICAL METHOD USED FOR CORRECTION OF MITRAL RESTENOSIS WITH AN ELASTIC DILATOR СтатьяLapkin K.V., Chernov V.A., Dubrovsky V.S.Grudnaya Khirurgiya. Том 23. 1981. С. 11-16