Manuel Bodirsky, Hubie Chen, Michael Pinsker. The reducts of equality up to primitive positive interdefinability. Journal of Symbolic Logic, 75(4):1249-1292, 2010. [doi]
@article{BodirskyCP10,
title = {The reducts of equality up to primitive positive interdefinability},
author = {Manuel Bodirsky and Hubie Chen and Michael Pinsker},
year = {2010},
url = {http://projecteuclid.org/euclid.jsl/1286198146},
researchr = {https://researchr.org/publication/BodirskyCP10},
cites = {0},
citedby = {0},
journal = {Journal of Symbolic Logic},
volume = {75},
number = {4},
pages = {1249-1292},
}