TY - JOUR AU - B Wladkowski AU - S Chenoweth AU - J Sanders AU - Morris Krauss AU - W Stevens C2 - Journal of the American Chemical Society DA - 1997-07-09 00:07:00 LA - en M1 - 119 PB - Journal of the American Chemical Society PY - 1997 TI - Acylation of beta-lactams by class A beta-lactamases: an ab initio theoretical study on the effects of the oxy-anion hole ER -