1. Family Jungermanniaceae of Japan. xI + II. I + II;Amakawa T.;JouJour. Hattori Bot. Lab.,1959
2. Proposals in Hepaticae;Bonner C. E. B.;Regn. Veget.,1964
3. A preliminary checklist of the Hepaticae of Europe and America (north of Mexico);Buch H.;Ann. Bryol.,1938
4. Corda A. I. C.1835—Deutschlands Jungermannien. In:Sturms Flora van Deutschland5/6.