A qualitative trajectory calculus as a basis for representing moving objects in Geographical Information Systems Nico Van de Weghe; Anthony Cohn; Guy De Tré; Philippe De Maeyer — 2006 Control and Cybernetics
Modelling imperfect time intervals in a two-dimensional space Yi Qiang; Matthias Delafontaine; Katrin Asmussen; Birger Stichelbaut; Guy De Tré; Philippe De Maeyer; Nico Van De Weghe — 2010 Control and Cybernetics