Norman D. Thomson. The geometric primitives of APL. In Paul Penfield Jr., editor, Proceedings of the international conference on APL, APL 1979, New York, New York, USA, May 30 - June 1, 1979. pages 306-312, ACM, 1979. [doi]
@inproceedings{Thomson79,
title = {The geometric primitives of APL},
author = {Norman D. Thomson},
year = {1979},
doi = {10.1145/390009.804479},
url = {https://doi.org/10.1145/390009.804479},
researchr = {https://researchr.org/publication/Thomson79},
cites = {0},
citedby = {0},
pages = {306-312},
booktitle = {Proceedings of the international conference on APL, APL 1979, New York, New York, USA, May 30 - June 1, 1979},
editor = {Paul Penfield Jr.},
publisher = {ACM},
isbn = {978-1-4503-7441-5},
}