@Inproceedings{EPTCS372.24, author = {Comfort, Cole and Kissinger, Aleks}, year = {2022}, title = {A Graphical Calculus for Lagrangian Relations}, editor = {Kishida, Kohei}, booktitle = {{\rm Proceedings of the Fourth International Conference on} Applied Category Theory, {\rm Cambridge, United Kingdom, 12-16th July 2021}}, series = {Electronic Proceedings in Theoretical Computer Science}, volume = {372}, publisher = {Open Publishing Association}, pages = {338-351}, doi = {10.4204/EPTCS.372.24}, }