CREATE TABLE table_19666 ("Year" FLOAT, "Mens singles" TEXT, "Womens singles" TEXT, "Mens doubles" TEXT, "Womens doubles" TEXT, "Mixed doubles" TEXT)

Name the year for victoria hristova neli nedialkova
SELECT "Year" FROM table_19666 WHERE "Womens doubles" = 'Victoria Hristova Neli Nedialkova'
SELECT "Year" FROM "table_19666" WHERE "Womens doubles" = 'Victoria Hristova Neli Nedialkova'