LOCAL AND GLOBAL ESTIMATES OF DERIVATIVES OF THE NONHOMOGENEOUS HYPOELLIPTIC EQUATION SOLUTIONS Article Burenkov V.I., MAMAN K.R. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Vol. 294. 1987. P. 777-781
STUDY OF THE STATE OF OXYGEN DIFFUSING THROUGH THIN SILVER MEMBRANES INTO VACUUM Article GRIAZNOV V.M., GULIANOVA S.G., KOLOSOV E.N., STARKOVSKII N.I. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Vol. 293. 1987. P. 872-875