Pauli Byckling, Jorma Sajaniemi. Roles of variables and programming skills improvement. In Doug Baldwin, Paul T. Tymann, Susan M. Haller, Ingrid Russell, editors, Proceedings of the 39th SIGCSE Technical Symposium on Computer Science Education, SIGCSE 2006, Houston, Texas, USA, March 3-5, 2006. pages 413-417, ACM, 2006. [doi]
Abstract is missing.