The in-vitro activity of ceftazidime: comparison with other beta-lactam antibiotics36601, Vanhoof, R., Gordts B., Coignau H., Stas G., and Butzler J.P. , J.Antimicrob.Chemother., 0/9/1981, Volume 8 Suppl B, Number 66, p.63 - 66, (1981)