Paul G. Comba. A Language for Three-Dimensional Geometry. IBM Systems Journal, 7(3/4):292-308, 1968.
@article{Comba68:0, title = {A Language for Three-Dimensional Geometry}, author = {Paul G. Comba}, year = {1968}, researchr = {https://researchr.org/publication/Comba68%3A0}, cites = {0}, citedby = {0}, journal = {IBM Systems Journal}, volume = {7}, number = {3/4}, pages = {292-308}, }