Jan Hubicka, Jaroslav Nesetril. Universal partial order represented by means of oriented trees and other simple graphs. Eur. J. Comb., 26(5):765-778, 2005. [doi]
@article{HubickaN05, title = {Universal partial order represented by means of oriented trees and other simple graphs}, author = {Jan Hubicka and Jaroslav Nesetril}, year = {2005}, doi = {10.1016/j.ejc.2004.01.008}, url = {http://dx.doi.org/10.1016/j.ejc.2004.01.008}, tags = {graph-rewriting, rewriting}, researchr = {https://researchr.org/publication/HubickaN05}, cites = {0}, citedby = {0}, journal = {Eur. J. Comb.}, volume = {26}, number = {5}, pages = {765-778}, }