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 author       = {Olga Lopez Acevedo and Thierry Gobron},
 year         = {2005},
 title        = {Quantum walks on Cayley Graphs},
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 volume       = {39},
 number       = {3},
 pages        = {585},
 doi          = {10.1103/PhysRevE.72.026113},
)
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 author       = {Andris Ambainis and Eric Bach and Ashwin Nayak and Ashvin Vishwanath and John Watrous},
 year         = {2001},
 title        = {One-Dimensional Quantum Walks},
 booktitle    = {Proceedings of the thirty-third annual ACM symposium on Theory of computing},
 pages        = {37--49},
 doi          = {10.1145/380752.380757},
)
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 author       = {Clement Ampadu},
 year         = {2011},
 title        = {Localization of two-dimensional five-state quantum walks},
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@article(inui05,
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 year         = {2005},
 title        = {One-dimensional three-state quantum walk},
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 author       = {Norio Konno},
 year         = {2002},
 title        = {Quantum random walks in one dimension},
 journal      = {Quantum Information Processing},
 volume       = {1},
 number       = {5},
 pages        = {345--354},
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@article(konno10,
 author       = {Norio Konno},
 year         = {2010},
 title        = {Localization of an inhomogeneous discrete-time quantum walk on the line},
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 volume       = {9},
 number       = {3},
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@phdthesis(kuklinski17,
 author       = {Parker Kuklinski},
 year         = {2017},
 title        = {Absorption Phenomena in Quantum Walks},
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@article(lyu15,
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 year         = {2015},
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 number       = {5},
 pages        = {052305},
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 author       = {T.D. Mackay and S.D. Bartlett and L.T. Stephenson and B.C. Sanders},
 year         = {2002},
 title        = {Quantum walks in higher dimensions},
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 pages        = {2745},
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 author       = {Armin Rainer},
 year         = {2013},
 title        = {Perturbation theory for normal operators},
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 pages        = {5545--5577},
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@article(stefanak12,
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 year         = {2012},
 title        = {Continuous deformations of the Grover walk preserving localization},
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 volume       = {66},
 pages        = {142},
 doi          = {10.1140/epjd/e2012-30146-9},
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@book(sylvester12,
 author       = {James Joseph Sylvester},
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 title        = {The Collected Mathematical Papers of James Joseph Sylvester},
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