Reference

Search for REF=[1783].
1783
Wagman, G. H., Testa, R. T. and Marquez, J. A.
Antibiotic 6640. II. Fermentation, isolation, and properties.
J. Antibiot. 23: 555-558, 1970.
PMID: 5487130.
DOI: 10.7164/antibiotics.23.555.