Kring Midden Utrecht : part report 2 : the Heuvelrug : meeting man and nature on the Utrechtse Heuvelrug : a contribution to understanding the relationships of man with the natural environment of the Utrechtse Heuvelrug, for the benefit of a qualitatively and quantitatively responsible recreational developmentKring Midden-Utrecht : partial report 3 : between Heuvelrug and Kromme RijnUtrecht Hill Ridge Regional PlanSoestdijk Palace as binding element for landscape : Utrecht Ridge should become a whole