312,955 EVALUATION Evaluation of new (B-lactam antibiotics : this symposium is dedicated to the memory of Stellan Ericson / guest eds. S. Ragnar [et al], - [Chicago ; London : The University of Chicago, 1986. - 145 s. : wykr. ; 30 cm (Reviews of Infectious Diseases, ISSN 0162-0886 ; vol. 8, suppl.3)