Rao, KSPB., Collard, MP., Trouet, A., Debruyn, A., Verzele, M., Noiret, A., Dejonghe, JP., & Hannart, J. (1985). On the Amidation of 17-deacetyl-vinblastine With the Ethyl Esters of Some Amino-acids. Societes Chimiques Belges. Bulletin, 94(2), 133-139. https://hdl.handle.net/2078.5/142233 (Original work published 1985)