Silvio Ghilardi. Unification Through Projectivity. Journal of Logic and Computation, 7(6):733-752, 1997.
@article{Ghilardi97, title = {Unification Through Projectivity}, author = {Silvio Ghilardi}, year = {1997}, researchr = {https://researchr.org/publication/Ghilardi97}, cites = {0}, citedby = {0}, journal = {Journal of Logic and Computation}, volume = {7}, number = {6}, pages = {733-752}, }