Philip T. Cox, Tomasz Pietrzykowski. Incorporating equality into logic programming via surface deduction. Annals of Pure and Applied Logic, 31:177-189, 1986. [doi]
@article{CoxP86-0,
title = {Incorporating equality into logic programming via surface deduction},
author = {Philip T. Cox and Tomasz Pietrzykowski},
year = {1986},
doi = {10.1016/0168-0072(86)90069-2},
url = {http://dx.doi.org/10.1016/0168-0072(86)90069-2},
researchr = {https://researchr.org/publication/CoxP86-0},
cites = {0},
citedby = {0},
journal = {Annals of Pure and Applied Logic},
volume = {31},
pages = {177-189},
}