Edward A. Ashcroft, William W. Wadge. Lucid, a Nonprocedural Language with Iteration. Communications of the ACM, 20(7):519-526, 1977.
@article{AshcroftW77, title = {Lucid, a Nonprocedural Language with Iteration}, author = {Edward A. Ashcroft and William W. Wadge}, year = {1977}, researchr = {https://researchr.org/publication/AshcroftW77}, cites = {0}, citedby = {0}, journal = {Communications of the ACM}, volume = {20}, number = {7}, pages = {519-526}, }