Gatalo, R., J. Rekecki, J. Hodolič, L. Borojev, M. Zeljković, and Željko Zeljković. “Machine Tool, Flexible Manufacturing Systems and Automatization of Procedures Projection”. Journal of Production Engineering, vol. 9, no. 9, Dec. 1992, pp. 33-51, doi:10.24867/JPE-1992-09-033.