CREATE TABLE table_48212 ("Winner" TEXT, "Country" TEXT, "Winter Olympics" FLOAT, "FIS Nordic World Ski Championships" TEXT, "Holmenkollen" TEXT)

what is the winter olympics when the country is soviet union and holmenkollen is 1970, 1979?
SELECT SUM("Winter Olympics") FROM table_48212 WHERE "Country" = 'soviet union' AND "Holmenkollen" = '1970, 1979'
SELECT SUM("Winter Olympics") FROM "table_48212" WHERE "Country" = 'soviet union' AND "Holmenkollen" = '1970, 1979'