@article{CC_2006_35_1_a5,
     author = {de Weghe, Nico Van and Cohn, Anthony G. and Tr\'e, Guy De and Maeyer, Philippe De},
     title = {A qualitative trajectory calculus as a basis for representing moving objects in {Geographical} {Information} {Systems}},
     journal = {Control and Cybernetics},
     pages = {97--119},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {2006},
     zbl = {1189.68170},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2006_35_1_a5/}
}