CREATE TABLE table_19645 ("Distance" TEXT, "Event" TEXT, "Record" TEXT, "Athletes" TEXT, "Nationality" TEXT, "Year" FLOAT, "Location" TEXT)

What are all the places where Birgit Fischer competed?
SELECT "Location" FROM table_19645 WHERE "Athletes" = 'Birgit Fischer'
SELECT "Location" FROM "table_19645" WHERE "Athletes" = 'Birgit Fischer'