Co-operation between owner, real estate developer and building company in cost planning processPeetrimägi, Lauri; Aus, IvarModern Building Materials, Structures and Techniques : abstracts of the 9th International Conference held on May 16-18, 2007, Vilnius, Lithuania2007 / p. 165-166 Co-operation between owner, real estate developer and building company in cost planning processPeetrimägi, Lauri; Aus, IvarThe 9th International conference Modern Building Materials, Structures and Techniques : May 16-18, 2007, Vilnius, Lithuania : selected papers. Vol. I2007 / p. 343-347