Palaeobotanical and palynological investigation with notes on the microfauna of some core samples from the Lower Cretaceous in the West Netherlands Basin.
1976. Mededelingen Rijks Geologische Dienst, Nieuwe Serie, Vol. 27-2; pp. 41-79, 29 fig. 6 plts.
Pollen analysis of the Quaternary marine deposits at Tornskov in South Jutland.
1963. Danmarks geologiske Undersøgels IV. Raekke, Bd. 4, Nr. 8; 23 pp. 3 fig. 1 plt. h.t. with pollen diagram folding-out. Orig. wrps. with libr. stamp.
Vegetation and its environment in Denmark in the Early Weichselian Glacial (Last Glacial).
1961. Diss. Univ. Copenhagen, reprinted from: Danmarks Geologisk Undersøgelse II. Raekke, Nr. 75; 175 pp. 12 fig. 4 photoplts. 11 plts. with pollendata folding-out. Orig. wrps. very good.