[1]
Overgaard Madsen, J.C. y Lahrmann, H. 2002. Webbaserede Spørgeskemaer i Transportundersøgelser. Proceedings from the Annual Transport Conference at Aalborg University. 9, 1 (dic. 2002). DOI:https://doi.org/10.5278/ojs.td.v9i1.4578.