add CITATION.bib

Author: baggepinnen

CITATION.bib

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+@inproceedings{controlsystems_jl,
+  abstract     = {ControlSystems.jl enables the powerful features of the Julia language to be leveraged for control design and analysis.<br/>The toolbox provides types for state-space, transfer-function, and time-delay models, together with algorithms for design and analysis.<br/>Julia's mathematically-oriented syntax is convenient for implementing control algorithms, and its just-in-time compilation gives performance on par with C.<br/>The multiple-dispatch paradigm makes it easy to combine the algorithms with powerful tools from Julia's ecosystem, such as automatic differentiation, arbitrary-precision arithmetic, GPU arrays, and probability distributions.<br/>We demonstrate how these features allow complex problems to be solved with little effort.},
+  author       = {Bagge Carlson, Fredrik and Fält, Mattias and Heimerson, Albin and Troeng, Olof},
+  booktitle    = {Proceedings of CDC 2021},
+  language     = {eng},
+  month        = {12},
+  title        = {ControlSystems.jl: A Control Toolbox in Julia},
+  url          = {https://github.com/JuliaControl/ControlSystems.jl},
+  year         = {2021},
+}