@misc{indiciaec72c67df99f6, title = {Mutations affecting the structure and function of immunoglobulin M.}, author = {M J Shulman and C Heusser and C Filkin and G Köhler}, year = {1982}, doi = {10.1128/mcb.2.9.1033-1043.1982}, url = {https://pubmed.ncbi.nlm.nih.gov/6817080/}, note = {Source identifier: 6817080} }