@INPROCEEDINGS { AUTHOR = "Pablo Barcel{\'o} and Chi Duo-Hong and Xuan Back-Le and Anthony Widjaja Lin and Reino Niskanen", TITLE = "Monadic Decomposability of Regular Relations", BOOKTITLE = "46th International Colloquium on Automata, Languages, and Programming (ICALP)", PAGES = "103:1-103:14", YEAR = "2019", }