Joost Engelfriet, Tjalling Gelsema. An exercise in structural congruence. Inf. Process. Lett., 101(1):1-5, 2007. [doi]
@article{EngelfrietG07,
title = {An exercise in structural congruence},
author = {Joost Engelfriet and Tjalling Gelsema},
year = {2007},
doi = {10.1016/j.ipl.2006.08.001},
url = {http://dx.doi.org/10.1016/j.ipl.2006.08.001},
researchr = {https://researchr.org/publication/EngelfrietG07},
cites = {0},
citedby = {0},
journal = {Inf. Process. Lett.},
volume = {101},
number = {1},
pages = {1-5},
}