Supercuspidal representations of $GS{p}_4$ over a local field of residual characteristic 2, part I

Asmuth, Charles; Keys, C. David

Compositio Mathematica, Volume 79 (1991) p. 109-122

Artin $L$-functions and normalization of intertwining operators

Keys, C. David; Shahidi, Freydoon

Annales scientifiques de l'École Normale Supérieure, Volume 21 (1988) p. 67-89