1. Taxonomical applications of ligule microcharacters in Compositae. 1. Anthemideae, Heliantheae and Tageteae.;BAAGØE;Botamsk Tidsskrift,1977b
2. Taxonomical applications of ligule microcharacters in Compositae. 2. Arctotidae, Asterae, Calenduleae, Eremothamneae, Inuleae, Liatrae, Mutiseae and Senecioneae.;BAAGØE;Botanisk Tidsskrift,1978
3. Raster-Elektronen-Mikroscopie der Epidermis-Oberflachen von Spermatophyten.;BARTHLOTT;Tropische und subtropische Pflanzenwelt,1977