1. Department of Planning, Aalborg University, Rendsburggade 14, 9000 Aalborg, Denmark;
2. Vaarst Vestervang, Staerhoej 1-17, Gistrup 9260, Denmark
3. Danfoss A/S, Nordborgvej 81, Nordborg 6430, Denmark
4. Kamstrup A/S, Industrivej 28, Skanderborg 8660, Denmark