1. New species and nomenclatural combinations in the lichen genus Cladonia;Ahti;Ann. Bot. Fennici.,1986
2. Endemism among Cladoniaceae in the table mountains of the Guayana Highland, Venezuela. Progress and problems in lichenology in the eighties;Ahti;Biblioth. Lichenol.,1987
3. Geomorphology of the Gran Sabana, Guayana Shield, southeastern Venezuela;Briceño;Geomorphology,1990
4. Biogeography of the Lost World (Pantepui region, norheastern South America): insights from bryophytes;Désamoré;Phytotaxa,2010
5. Nuevo catálogo de la flora vascular de Venezuela;Hokche,2008