@inbook(Cassaigne:02,
 author       = "J.~Cassaigne",
 year         = "2002",
 title        = "Unavoidable Patterns",
 chapter      = "3",
 pages        = "111--134",
)
@article(Currie:05,
 author       = "J.~Currie",
 year         = "2005",
 title        = "Pattern avoidance: themes and variations",
 journal      = "Theoret. Comput. Sci.",
 volume       = "339",
 number       = "1",
 pages        = "7--18",
 doi          = "10.1016/j.tcs.2005.01.004",
)
@article(Currie:11,
 author       = "J.~Currie",
 year         = "2011",
 title        = "Pattern avoidance with involution",
 journal      = "CoRR",
 volume       = "abs/1105.2849",
 url          = "http://arxiv.org/abs/1105.2849",
)
@book(Loth:2,
 author       = "M.~Lothaire",
 year         = "2002",
 title        = "Algebraic Combinatorics on~Words",
 publisher    = "Cambridge University Press",
 address      = "Cambridge, UK",
)
@article(Thue:06,
 author       = "A.~Thue",
 year         = "1906",
 title        = "{\"U}ber unendliche {Z}eichenreihen",
 journal      = "Norske Vid. Skrifter I.\tmspace +\thinmuskip {.1667em}Mat.-Nat.\tmspace +\thinmuskip {.1667em}Kl., Christiania",
 volume       = "7",
 pages        = "1--22",
)
@article(Thue:12,
 author       = "A.~Thue",
 year         = "1912",
 title        = "{\"U}ber die gegenseitige {L}age gleicher {T}eile gewisser {Z}eichenreihen",
 journal      = "Norske Vid. Skrifter I.\tmspace +\thinmuskip {.1667em}Mat.-Nat.\tmspace +\thinmuskip {.1667em}Kl., Christiania",
 volume       = "1",
 pages        = "1--67",
)