1. Penicillin production by pigment-free molds;Anderson;Ind. Eng. Chem,1953
2. Microbiological studies of penicillin production, IX. On the pigmentation saltant P. chrysogenum Q 176 Arima et Ogasawara.;Arima;J. Antibiot., Japan.,1951
3. The biosynthesis of penicillin by Penicillium notatum.;Arnstein;Biochem. J,1948
4. Biological strains of Streptomyces griseus.;Carvajal;Mycologia.,1946