(en) Birger Stichelbaut, Wouter Gheyle, Timothy Saey et Veerle Van Eetvelde, « The First World War from above and below. Historical aerial photographs and mine craters in the Ypres Salient », Applied Geography, vol. 66, , p. 64–72 (ISSN0143-6228, DOI10.1016/j.apgeog.2015.11.020, lire en ligne, consulté le )
issn.org
portal.issn.org
(en) Birger Stichelbaut, Wouter Gheyle, Timothy Saey et Veerle Van Eetvelde, « The First World War from above and below. Historical aerial photographs and mine craters in the Ypres Salient », Applied Geography, vol. 66, , p. 64–72 (ISSN0143-6228, DOI10.1016/j.apgeog.2015.11.020, lire en ligne, consulté le )
sciencedirect.com
(en) Birger Stichelbaut, Wouter Gheyle, Timothy Saey et Veerle Van Eetvelde, « The First World War from above and below. Historical aerial photographs and mine craters in the Ypres Salient », Applied Geography, vol. 66, , p. 64–72 (ISSN0143-6228, DOI10.1016/j.apgeog.2015.11.020, lire en ligne, consulté le )