@article(Abbott2016,
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 year         = {2016},
 title        = {{Multipartite causal correlations: Polytopes and inequalities}},
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@article(Allen2016,
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 year         = {2017},
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 author       = {Jonathan Barrett and Robin Lorenz and Ognyan Oreshkov},
 year         = {2019},
 title        = {Quantum Causal Models},
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)
@article(barrett2020cyclic,
 author       = {Jonathan Barrett and Robin Lorenz and Ognyan Oreshkov},
 year         = {2020},
 title        = {Cyclic Quantum Causal Models},
 journal      = {preprint arXiv:2002.12157 [quant-ph]},
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@phdthesis(phd,
 author       = {{\"{A}}min Baumeler},
 year         = {2017},
 title        = {{Causal Loops: Logically Consistent Correlations, Time Travel, and Computation}},
 type         = {{PhD thesis}},
 school       = {Universit{\`{a}} della Svizzera italiana},
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 author       = {{\"{A}}min Baumeler and Fabio Costa and Timothy~C Ralph and Stefan Wolf and Magdalena Zych},
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@article(ClassicalNC1,
 author       = {{\"{A}}min Baumeler and Adrien Feix and Stefan Wolf},
 year         = {2014},
 title        = {{Maximal incompatibility of locally classical behavior and global causal order in multiparty scenarios}},
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 number       = {4},
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 author       = {{\"{A}}min Baumeler and Stefan Wolf},
 year         = {2014},
 title        = {{Perfect signaling among three parties violating predefined causal order}},
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 address      = {Piscataway},
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@article(Baumeler2016fixed,
 author       = {{\"{A}}min Baumeler and Stefan Wolf},
 year         = {2016},
 title        = {{Device-independent test of causal order and relations to fixed-points}},
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@article(Baumeler2016,
 author       = {{\"{A}}min Baumeler and Stefan Wolf},
 year         = {2016},
 title        = {{The space of logically consistent classical processes without causal order}},
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 pages        = {013036},
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@article(Baumeler2018,
 author       = {{\"{A}}min Baumeler and Stefan Wolf},
 year         = {2018},
 title        = {{Computational tameness of classical non-causal models}},
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 title        = {Simulated time travel, teleportation without communication, and how to conduct a romance with someone who has fallen into a black hole},
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 note         = {{Talk at QUPON, 2005, Vienna, Austria}},
)
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 title        = {{To Constantin Carath\'{e}odory}},
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 chapter      = {Document 284},
 volume       = {8: The Berlin Years: Correspondence, 1914--1918: Part A: 1914--1917},
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 author       = {Kurt G{\"{o}}del},
 year         = {1949},
 title        = {{An example of a new type of cosmological solutions of Einstein's field equations of gravitation}},
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 year         = {1989},
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 pages        = {439},
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@article(Oreshkov2012,
 author       = {Ognyan Oreshkov and Fabio Costa and {\v{C}}aslav Brukner},
 year         = {2012},
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 journal      = {Nature Communications},
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@book(Pearl,
 author       = {Judea Pearl},
 year         = {2013},
 title        = {Causality},
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@incollection(Pegg:2001wa,
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 title        = {{Quantum mechanics and the time travel paradox}},
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@article(Pollock2018,
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@incollection(wuethrich,
 author       = {Chris Smeenk and Christian W\"uthrich},
 year         = {2011},
 title        = {Time travel and time machines},
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 booktitle    = {{The Oxford Handbook of Philosophy of Time}},
 chapter      = {20},
 publisher    = {Oxford University Press},
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@article(Stockum:1937,
 author       = {Willem~Jacob van Stockum},
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 title        = {{The gravitational field of a distribution of particles rotating about an axis of symmetry}},
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 volume       = {57},
 number       = {1938},
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@article(Svetlichny:2009ve,
 author       = {George Svetlichny},
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 title        = {{Effective quantum time travel}},
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@article(Svetlichny:2011gq,
 author       = {George Svetlichny},
 year         = {2011},
 title        = {{Time travel: Deutsch vs.~teleportation}},
 journal      = {International Journal of Theoretical Physics},
 volume       = {50},
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@article(Tobar2020,
 author       = {Germain Tobar and Fabio Costa},
 year         = {2020},
 title        = {{Reversible dynamics with closed time-like curves and freedom of choice}},
 journal      = {Classical and Quantum Gravity},
 volume       = {37},
 number       = {20},
 pages        = {205011},
 doi          = {10.1088/1361-6382/aba4bc},
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