G.  Rambold and Triebel, D., ?Gelatinopsis, Geltingia and Phaeopyxis: three helotialean genera with lichenicolous species?, Notes from the Royal Botanic Garden, Edinburgh, vol. 46, pp. 375-389, 1990.

C.  Roux and Triebel, D., ?Révision des espèces de Stigmidium et de Sphaerellothecium (champignons lichénicoles non lichénisés, Ascomycetes) correspondant à Pharcidia epicymatia sensu Keissler ou à Stigmidium schaereri auct.?, Bulletin de la Société Linnéene de Provence, vol. 45, pp. 451-542, 1994.

M. P.  Zhurbenko and Triebel, D., ?Three new species of Stigmidium and Sphaerellothecium (lichenicolous ascomycetes) on Stereocaulon?, Mycological Progress, vol. 7, pp. 137-145, 2008.

D.  Triebel, Rambold, G., and Elix, J. A., ?A conspectus of the genus Phacopsis (Lecanorales)?, Bryologist, vol. 98, pp. 71-83, 1995.

D.  Triebel, Wedin, M., and Rambold, G., ?The genus Scutula (lichenicolous ascomycetes; Lecanorales): species on the Peltigera canina and P. horizontalis groups?, Symbolae Botanicae Upsalienses, vol. 32, no. 1, pp. 323-337, 1997.

M.  Wedin, Ihlen, P. G., and Triebel, D., ?Scutula tuberculosa, the correct name of the Scutula growing on Solorina spp., with a key to Scutula s. str. in the Northern Hemisphere?, Lichenologist, vol. 39, pp. 329-333, 2007.

H.  Kümmerling, Triebel, D., and Rambold, G., ?Lepraria neglecta and its lichenicolous fungi?, Bibliotheca Lichenologica, vol. 53, pp. 147-160, 1993.

D.  Triebel, ?Lecideicole Ascomyceten. Eine Revision der obligat lichenicolen Ascomyceten auf lecideoiden Flechten?, Bibliotheca Lichenologica, vol. 35, p. 278 pp., 1989.