1. Partial amino acid sequence of penicillinase coded by E. coli plasmid R6K;Ambler;Proc. nat. Acad. Sci. (Wash.),1978
2. Pre-steady state β-lactamase kinetics. Observation of a covalent intermediate during turnover of a fluorescent cephalosporin by the β-lactamase of Staph. aureus PC 1;Anderson;J. Biol. Chem.,1981
3. Interaction of azthreonam and related monobactams with β-lactamases from gram-negative bacteria;Bushy;Antimicrob. Agents Chemother.,1982
4. Chemical studies on the inactivation of E. coli RTEM β-lactamase by clavulanic acid;Charnas;Biochemistry,1978
5. Simple assay and extraction of periplasmic penicillinase in E. coli;Choma;Canad. J. Microbiol.,1981