Altmannsberger, M., Dirk, T., Droese, M., Weber, K., & Osborn, M. (1986). Keratin polypeptide distribution in benign and malignant breast tumors: Subdivision of ductal carcinomas using monoclonal antibodies. Virchows Archiv B, 51(3), 265-275. doi:10.1007/BF02899036.