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Tree and stand height measurements and estimations on vertical
photographs. ITC-Textbook of photo-interpretation, Vol. X, Ch.
X.2.1, ITC, Delft, Summer 1963.
Volume determination on aerial photographs. ITC-Publ. B 18, 1963.
Houtmassabepaling op luchtfoto’s in Nederland. Nederlands Bosbouw
Tijdschrift, 35e jrg., No. 9, sept. ’63.
Investigations concerning tree height measurements and estimations.
ITC-Publ. B 22, 1964.
Compilation of forest and vegetation maps of vertical photographs.
ITC-Textbook of photo-interpretation, Vol. X, Ch. X.4, ITC, Delft
1964.
Measurements or estimations of heights on forest stands 7. In print,
(with R. De Milde) : Influence of scale on species recognation. In print.
Een bijdrage van het vegetatiekundig luchtfoto-onderzoek tot de
landschapsgeografie. TAG 1961, LXXVIII, pp. 157-162.
Planned rural development in Northern Rhodesia. ITC-Publ. B 12/13,
1961.
A study of soil surveys and photo-interpretation in the Grand-Duchy
of Luxembourg. ITC-Publ. B 19/20, 1963.
and C. Reverterá, Etude hydro-géologique du Bugesera. Rapport
CEE, 1961.
Symposium on photo-interpretation, Commission VII, ISP, Delft,
August 30th - September 5th, 1962. Phot’a XVIII, 1961 /’62, pp.
79-86.
Statische en dynamische aspecten van de geomorfologie, als uitgangs-
puntvoor de luchtfoto-interpretatie. TAG 1962, LXXIX, pp. 166-170.
The technique of photo-interpretation for mineral exploration. UN.
Conf. appl. Sc. Techn. less dev. areas. Genève 1963 (E/Conf. 39A/94).
Geomorfología y conservación de recursos naturales. Conferencia geo-
morfología applicada, Merida, Venezuela 1963.
The application of aerial photograph interpretation in geomorpholog-
ical research. Geographical studies, 46, Polish academy of sciences,
pp. 121-126, 1963.
Geomorphological observations on Indonesian volcanoes. TAG 1963,
LXXX, pp. 237-251.
Geomorphology in Delta studies. ITC-Publ. B 24, 1964.
Geomorphology of the Star Mountains. Scientific results of the Neth.
New Guinea expedition 1959. Nova Guinea, Geol. series 4, 1964.
Karst morphology of the Star Mountains (Central New Guinea) and
its relation to lithology and climate. Ztschr. für Geomorphologie
1964, VIII, pp. 40-49.
Some volcanoes of Halmahera (Moluccas) and their geomorphological
The use of aerial photographs in Delta studies. UNESCO symposium
on humid tropical zone Deltas, Dacca, East Pakistan, 1964.
päische Verhältnissen. Berichte z. Deutsch. Landeskunde, 29, 1962,
pp. 131-164, Bad Godesberg.
Planning of soil surveys in land development. Int. Inst. Land Reclama
tion and Drainage. Publ. Nr. 10, 1963, Wageningen.
