%0 Journal Article %T Implementation Effects of a Program for the Training of Coaching Skills with School Principals* %A Veenman, Simon %A Visser, Yvonne %A Wijkamp, Nicole %J School Effectiveness and School Improvement %V 9 %N 2 %P 135-156 %@ 1744-5124 %D 1998-06-01 %I Taylor & Francis Group %~ DeepDyve