Towards a structured approach to building qualitative reasoning models and simulations. - Bert Bredeweg; Paulo Salles; Anders Bouwer; Jochem Liem; Tim Nuttle; Eugenia Cioaca; Elena Nakova; Richard Noble; Ana Luiza Rios Caldas; Yordan Uzunov; Emilia Varadinova; Andreas Zitek (Ecol. Informatics, 2008)