Jan Willem Klop, Vincent van Oostrom, Roel C. de Vrijer. A geometric proof of confluence by decreasing diagrams. Journal of Logic and Computation, 10(3):437-460, 2000.
@article{KlopOV00, title = {A geometric proof of confluence by decreasing diagrams}, author = {Jan Willem Klop and Vincent van Oostrom and Roel C. de Vrijer}, year = {2000}, tags = {C++}, researchr = {https://researchr.org/publication/KlopOV00}, cites = {0}, citedby = {0}, journal = {Journal of Logic and Computation}, volume = {10}, number = {3}, pages = {437-460}, }