TY - RPRT TI - Biosurfactants from Bacillus licheniformis: structural analysis and characterization. AU - K Jenny AU - O Käppeli AU - A Fiechter PY - 1991 DO - 10.1007/bf00164690 UR - https://pubmed.ncbi.nlm.nih.gov/1367776/ ID - 1367776 ER -