Alan Borning. Defining constraints graphically. In Marilyn M. Mantei, Peter Orbeton, editors, Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, CHI 1886, Boston, Massachusetts, USA, April 13-17, 1986. pages 137-143, ACM, 1986. [doi]
@inproceedings{Borning86-1, title = {Defining constraints graphically}, author = {Alan Borning}, year = {1986}, doi = {10.1145/22627.22362}, url = {https://doi.org/10.1145/22627.22362}, researchr = {https://researchr.org/publication/Borning86-1}, cites = {0}, citedby = {0}, pages = {137-143}, booktitle = {Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, CHI 1886, Boston, Massachusetts, USA, April 13-17, 1986}, editor = {Marilyn M. Mantei and Peter Orbeton}, publisher = {ACM}, isbn = {978-0-89791-180-1}, }