Rekecki, J., Zeljković, M., Borojev, L., Gatalo, R. and Hodolič, J. 1989. Contribution to research after foundations for defining the conception of machining system modular design. Journal of Production Engineering. 6, 5, 6 (Dec. 1989), 109–128. DOI:https://doi.org/10.24867/JPE-1989-06-109.