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