?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Boucher&rft.aufirst=Hippolyte&rft.date=19+April+2023&rft.title=Essais+sur+les+tests+de+sp%C3%A9cification+et+la+s%C3%A9lection+de+mod%C3%A8les+%C3%A0+variables+instrumentales