George H. L. Fletcher, Marc Gyssens, Jan Paredaens, Dirk Van Gucht, Yuqing Wu. Structural characterizations of the navigational expressiveness of relation algebras on a tree. J. Comput. Syst. Sci., 82(2):229-259, 2016. [doi]
@article{FletcherGPGW16,
title = {Structural characterizations of the navigational expressiveness of relation algebras on a tree},
author = {George H. L. Fletcher and Marc Gyssens and Jan Paredaens and Dirk Van Gucht and Yuqing Wu},
year = {2016},
doi = {10.1016/j.jcss.2015.10.002},
url = {https://doi.org/10.1016/j.jcss.2015.10.002},
researchr = {https://researchr.org/publication/FletcherGPGW16},
cites = {0},
citedby = {0},
journal = {J. Comput. Syst. Sci.},
volume = {82},
number = {2},
pages = {229-259},
}