Malmin, Olav Kåre, Eirik Skjetne, and Linda Alfheim. 2004. “Modellstruktur for Tverretatlige Regionale Persontransportmodeller I Norge”. Proceedings from the Annual Transport Conference at Aalborg University 11 (1). https://doi.org/10.5278/ojs.td.v11i1.4999.