https://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fullf.web&search1=R=133615
Rechercher Christiansen, F G; Rechercher Dam, G; Rechercher McIntyre, D J; Rechercher Nohr-hansen, H; Rechercher Pedersen, G K; Rechercher Sonderholm, M
Périodique (revue)