CREATE TABLE table_24958 ("Discipline" TEXT, "Contested" TEXT, "Number of Olympiads" FLOAT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

Name the discipline for bronze being 0
SELECT "Discipline" FROM table_24958 WHERE "Bronze" = '0'
SELECT "Discipline" FROM "table_24958" WHERE "Bronze" = '0'