CREATE TABLE table_43531 ("Name" TEXT, "Country" TEXT, "Type" TEXT, "Moving from" TEXT, "Transfer window" TEXT, "Ends" FLOAT, "Transfer fee" TEXT, "Source" TEXT)

What is the name when winter is the transfer window?
SELECT "Name" FROM table_43531 WHERE "Transfer window" = 'winter'
SELECT "Name" FROM "table_43531" WHERE "Transfer window" = 'winter'