Working Group on the Landscape of the Zuiderzee Polders from the Contact Committee for Nature and Landscape Conservation (CCNL)

Topics:
-exchange of views on the landscape of Wieringermeer and Northeast Polder between working group and executive departments (April 1943- January 1944);
-landscape plan for the Northeast Polder(1947);
-Hoornsche Hop (1947);
-Van Eesteren delegate from CCNL in the Southern Polders Advisory Committee (November 1949);
-allotment plan for Eastern Flevoland (December 1955);
-border lakes of the Markerwaard (1965-early 1973).