1. A revision of the Aethionema saxatile complex (Brassicaceae);Andersson;Wilidenowia,1983
2. Origanum L.;Baden,1991
3. Glandular hair formation in Origanum species;Bosabalidis;Ann. Bot.,1984
4. Ecology and echophysiology of leaf pubescence in North American desert plants;Ehleringer,1984