1932
Bibliografía (11 obras)
Dansk feltflora
1981
Ecological studies in Danish heath vegetation
1976
Edaphic conditions and plant-soil relationships on roadsides in Denmark
1974
Microthermic observations in arctic vegetation
1973
Plantekendskab
1972
The vegetation on roadsides in Denmark
Lichens in South Greenland
1971
Analyses of soil profiles in dwarf-shrub vegetation in south Greenland
1969
Vascular plants in the Faeroes
1966
Lagoon sediments in Greenland
1964
Macrolichens from central west Greenland
1962
