1. Blakeslee D, Butler JE, Stone WH (1971) Serum antigens of cattle. II. Immunogenetics of two immunoglobulin allotypes. J Immunol 107:227–235
2. Brown WR, Kacskovics I, Amendt B, Shinde R, Blackmore N, Rothschild M, Butler JE (1995) The hinge deletion variant of porcine IgA results from a mutation at the splice acceptor site in the first Cα intron. J Immunol 154:3836–3842
3. Butler JE (1974) Immunoglobulins of the mammary secretions. In: Larson BL, Smith V (eds) Lactation, a comprehensive treatise. Vol. III, chapter V. Academic, New York, pp 217–255
4. Butler JE (2006) Preface: why I agreed to do this. In: Antibody Repertoire Development. (J.E. Butler, Guest Ed). Developmental and Comparative Immunology 30:1–17
5. Butler JE, Wertz N (2006) Antibody repertoire development in fetal and neonatal piglets. XVII. IgG subclass transcription revisited with emphasis on new IgG3. J Immunol 177:5480–5489