What Matters for Adversarial Imitation Learning? - Orsini, Manu; Raichuk, Anton; Hussenot, Leonard; Vincent, Damien; Dadashi, Robert; Girgin, Sertan; Geist, Matthieu; Bachem, Olivier; Pietquin, Olivier; Andrychowicz, Marcin (Advances in Neural Information Processing Systems, 2021)