TY - RPRT TI - New active streptomycin derivatives. AU - H Heding AU - G J Fredericks AU - O Lützen PY - 1972 DO - 10.3891/acta.chem.scand.26-3251 UR - https://pubmed.ncbi.nlm.nih.gov/4119144/ ID - 4119144 ER -