@article(baezCompositionalFrameworkPassive2015,
 author       = {John C. Baez and Brendan Fong},
 year         = {2018},
 title        = {A {{Compositional Framework}} for {{Passive Linear Networks}}},
 journal      = {Theory and Applications of Categories},
 volume       = {33},
 pages        = {1158--1222},
 eprint       = {1504.05625},
)
@inproceedings(bonchiRefinementSignalFlow2017,
 author       = {Filippo Bonchi and Joshua Holland and Dusko Pavlovic and Pawe{\l} Soboci{\'n}ski},
 year         = {2017},
 title        = {Refinement for Signal Flow Graphs},
 editor       = {Roland Meyer and Uwe Nestmann},
 booktitle    = {28th International Conference on Concurrency Theory ({{CONCUR}} 2017)},
 series       = {Leibniz International Proceedings in Informatics ({{LIPIcs}})},
 volume       = {85},
 publisher    = {{Schloss Dagstuhl\textendash Leibniz-Zentrum fuer Informatik}},
 address      = {{Dagstuhl, Germany}},
 pages        = {24:1--24:16},
 doi          = {10.4230/LIPIcs.CONCUR.2017.24},
 url          = {http://drops.dagstuhl.de/opus/volltexte/2017/7775},
)
@inproceedings(bonchiGraphicalAffineAlgebra2019,
 author       = {Filippo Bonchi and Robin Piedeleu and Pawe{\l} Soboci{\'n}ski and Fabio Zanasi},
 year         = {2019},
 title        = {Graphical {{Affine Algebra}}},
 booktitle    = {34th {{Annual ACM}}/{{IEEE Symposium}} on {{Logic}} in {{Computer Science}} ({{LICS}})},
 publisher    = {{IEEE}},
 address      = {{Vancouver, BC, Canada}},
 pages        = {1--12},
 doi          = {10.1109/LICS.2019.8785877},
)
@article(bonchiInteractingHopfAlgebras2017,
 author       = {Filippo Bonchi and Pawe{\l} Soboci{\'n}ski and Fabio Zanasi},
 year         = {2017},
 title        = {Interacting {{Hopf Algebras}}},
 journal      = {Journal of Pure and Applied Algebra},
 volume       = {221},
 number       = {1},
 pages        = {144--184},
 doi          = {10.1016/j.jpaa.2016.06.002},
 eprint       = {1403.7048},
)
@article(carboniCartesianBicategories1987,
 author       = {Aurelio Carboni and R. F. C. Walters},
 year         = {1987},
 title        = {Cartesian Bicategories {{I}}},
 journal      = {Journal of Pure and Applied Algebra},
 volume       = {49},
 pages        = {11--32},
 doi          = {10.1016/0022-4049(87)90121-6},
)
@phdthesis(coyaCircuitsBondGraphs2018,
 author       = {Brandon Coya},
 year         = {2018},
 title        = {Circuits, Bond Graphs, and Signal-Flow Diagrams: {{A}} Categorical Perspective},
 school       = {University of California Riverside},
)
@book(desoerBasicCircuitTheory1969,
 author       = {Charles A. Desoer and Ernest S. Kuh},
 year         = {1969},
 title        = {Basic Circuit Theory},
 publisher    = {{McGraw-Hill}},
 address      = {{New York}},
)