PERIODIC-SOLUTIONS TO LINEAR-SYSTEMS WITH SMALL PARAMETER BY DERIVATIVE Article ROZHKOV V.I. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Vol. 224. 1975. P. 1268-1271
SELECTIVE HYDROGENATION OF CYCLOPENTADIENE ON MEMBRANE CATALYSTS Article SMIRNOV V.S., ERMILOVA M.M., KOKOREVA N.V., GRYAZNOV V.M. Doklady Akademii nauk SSSR. Mezhdunarodnaya Kniga, Moscow, Russian Federation. Vol. 220. 1975. P. 647-650