ISOLATION, SOME PHYSICOCHEMICAL AND CATALYTIC PROPERTIES OF L-METHIONINE GAMMA-LYASE FROM PSEUDOMONAS-TAETROLENS Статья ZANIN V.A., LUKINA V.I., BEREZOV T.T. Voprosy Meditsinskoj Khimii. Том 35. 1989. С. 84-89
CONTROL OF PROGRAMMED MOTION THROUGH ONLY SOME OF ITS COORDINATES Статья MUKHARLYAMOV R.G. Differential Equations. Том 25. 1989. С. 670-674