@misc {oeis,
     AUTHOR = {OEIS Foundation Inc. (2016)},
     NOTE = {The On-Line Encyclopedia of Integer
Sequences, \url{http://oeis.org}},
}

@incollection {Krattenthaler,
    author = {Krattenthaler, Christian},
     title = {Lattice path enumeration},
 booktitle = {Handbook of Enumerative Combinatorics},
    SERIES = {Discrete Math. Appl. (Boca Raton)},
     PAGES = {589-678},
 PUBLISHER = {CRC Press},
      YEAR = {2015}
}

@manual{Sage,
  Key          = {Sage},
  Author       = {W.\thinspace{}A. Stein and others},
  Organization = {The Sage Development Team},
  Title        = {{S}age {M}athematics {S}oftware ({V}ersion 8.0)},
  note         = {\url{http://www.sagemath.org}},
  Year         = {2017},
}