Antibacterial activity of carumonam and cefpirome on hospital strains resistant to gentamicin and cephalothin: comparison with other beta-lactam antibiotics, new fluoroquinolones, aminoglycosides and other antibiotics, Vanhoof, R., Nyssen H.J., Nulens E., Roebben E., and Hubrechts J.M. , Pathol.Biol.(Paris), 0/6/1990, Volume 38, Issue 6, Number 637, p.634 - 637, (1990)