L型菌
Domingue, Gerald J. (1982). Cell wall-deficient bacteria: basic principles and clinical significance. Reading, Mass: Addison-Wesley Pub. Co. ISBN 0-201-10162-9
Mattman, Lida H. (2001). Cell wall deficient forms: stealth pathogens. Boca Raton: CRC. ISBN 0-8493-8767-1. https://books.google.co.jp/books?id=mincr2Hi81UC&pg=frontpage&redir_esc=y&hl=ja