CREATE TABLE table_18042409_1 (player VARCHAR2, alma_mater VARCHAR2)

List the plats that attended Wilfrid Laurier University.
SELECT player FROM table_18042409_1 WHERE alma_mater = "Wilfrid Laurier University"
SELECT "player" FROM "table_18042409_1" WHERE "Wilfrid Laurier University" = "alma_mater"