DEPENDENCE OF THE CATALYTIC ACTIVITY OF PALLADIUM-RUTHENIUM ALLOYS ON THEIR COMPOSITION AND CONDITIONS OF HEAT TREATMENT Article Khrapova E.V., Gryaznov V.M., Kaluga V.I., Roshan N.R., Shimulis V.I., Dzhuntini B., Kornilov V.V. Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. Kluwer Academic Publishers-Plenum Publishers. Vol. 22. 1973. P. 2377-2381