Distributed Visual Programming Environment: An Attempt to Integrate Third Generation Languages with Advanced User Environments. - Frank M. Rijnders; Hans J. W. Spoelder; Frans C. A. Groen (Programming Environments for High-Level Scientific Problem Solving, 1991)

Versatile Visual Programming Environment for Scientific Applications. - Frank M. Rijnders; Hans J. W. Spoelder; Emiel P. M. Corten; A. H. Ullings; Frans C. A. Groen (SIGSMALL/PC, 1991)