@Inproceedings{EPTCS288.4, author = {Okada, Mitsuhiro and Takahashi, Yuta}, year = {2019}, title = {On Quasi Ordinal Diagram Systems}, editor = {Fern\'andez, Maribel and Mackie, Ian }, booktitle = {{\rm Proceedings Tenth International Workshop on} Computing with Terms and Graphs, {\rm Oxford, UK, 7th July 2018}}, series = {Electronic Proceedings in Theoretical Computer Science}, volume = {288}, publisher = {Open Publishing Association}, pages = {38-49}, doi = {10.4204/EPTCS.288.4}, }