Issa, A A Antibiotic production by the cyanobacteria Oscillatoria angustissima and Calothrix parietina. [electronic resource] - Environmental toxicology and pharmacology Dec 1999 - 33-7 p. digital Publication Type: Journal Article ISSN: 1382-6689 Standard No.: 10.1016/s1382-6689(99)00027-7 doi