Y. Osato

Production and isolation of a new antibiotic: kanamycin.

K. Nitta, T. Takeuchi, H. Umezawa, 1957, The Journal of antibiotics.

Ka~amycin, Mechanism of Resistance to Aminoglycasides and Development of Derivatives Active Against Resistant Strains:

K. Nitta, H. Umezawa, Y. Okami, 1979 .

TWO β-LACTAMASE INHIBITORS PRODUCED BY A STREPTOMYCES

S. Mitsuhashi, M. Hamada, H. Umezawa, 1973 .

A new antibiotic, alboverticillin.

H. Umezawa, S. Kondo, K. Maeda, 1958, The Journal of antibiotics.