Phenetic and phylogenetic studies based on measurements of Plantago ser. Brasilenses von Rahn, Knud

Determination of angiosperm families by means of a punched-card system von Hansen, Bertel 1932-2005, Rahn, Knud

Botanical studies in the Atuel Valley Area, Mendoza Province, Argentina von Böcher, Tyge W., Hjerting, Jan Peter, Rahn, Knud

Plantago sect. Novorbis Subspecies et combinationes novae von Rahn, Knud

Plantago section Virginica von Rahn, Knud

Plantago section Virginica a taxonomic revision of a group of American plantains, using experimental, taximetric and classical methods von Rahn, Knud

Botanical studies in the Atuel Valley Area, Mendoza Province, Argentina von Böcher, Tyge W., Hjerting, Jan Peter, Rahn, Knud

Determination of angiosperm families by means of a punched-card system von Hansen, Bertel 1932-2005, Rahn, Knud

Determination of angiosperm families by means of a punched-card system von Hansen, Bertel 1932-2005, Rahn, Knud

Botanical studies in the Atuel Valley Area, Mendoza Province, Argentina von Böcher, Tyge W., Hjerting, Jan Peter, Rahn, Knud

Botanical studies in the Atuel Valley Area, Mendoza Province, Argentina von Böcher, Tyge W., Hjerting, Jan Peter, Rahn, Knud

Determination of angiosperm families by means of a punched-card system von Hansen, Bertel 1932-2005, Rahn, Knud

Plantago ser. Brasilienses, a taxonomic revision von Rahn, Knud

Flora fanerogámica Argentina

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