1) WOO, P. W. K.; H. W. DION & Q. R. BARTZ: Butirosins A and B, aminoglycoside antibiotics. I. Structural units. Tetrahedron Letters 1971: 2617-2620, 1971
2) WOO, P. W. K.: Butirosins A and B, aminoglycoside antibiotics. II. Mass spectrometric study. Tetrahedron Letters 1971: 2621-2624, 1971
3) WOO, P. W. K.; H. W. DION & Q. R. BARTZ: Butirosins A and B, aminoglycoside antibiotics. III. Structures. Tetrahedron Letters 1971: 2625-2628, 1971
4) HOWELLS, J. D.; L. E. ANDERSON, G. L. COFFEY, G. D. SENOS, M. A. UNDERHILL, D. L. VOGLER & J. EHRLICH: Butirosin, a new aminoglycosidic antibiotic complex: Bacterial origin and some microbiological studies. Antimicr. Agents & Chemoth. 2: 79-83, 1972
5) DION, H. W.; P. W. K. Woo, N. E. WILLMER, D. L. KERN, J. ONAGA & S. A. FUSARI: Butirosin, a new aminoglycosidic antibiotic complex: Isolation and characterization. Antimicr. Agents & Chemoth. 2: 84-88, 1972