@article{Kauffman1990-qe,
  title     = {An invariant of regular isotopy},
  author    = {Kauffman, Louis H},
  abstract  = {This paper studies a two-variable Laurent polynomial invariant
               of regular isotopy for classical unoriented knots and links.
               This invariant is denoted L K \{L\_K\} for a link K K , and it
               satisfies the axioms: 1. Regularly isotopic links receive the
               same polynomial. 2. L [ unk ] = 1 \{L\_\{[\{\textbackslashtext
               \{unk\}\}]\}\} = 1 . 3. L [ unk ] = a L , L [ unk ] = a − 1 L
               \{L\_\{[\{\textbackslashtext \{unk\}\}]\}\} =
               aL,\textbackslashqquad \{L\_\{[\{\textbackslashtext
               \{unk\}\}]\}\} = \{a^\{ - 1\}\}L . 4. L [ unk ] + L [ unk] = z (
               L [ unk] + L [ unk] ) \{L\_\{[\{\textbackslashtext
               \{unk\}\}]\}\} + \{L\_\{[\{\textbackslashtext \{unk]\}\}\}\} =
               z(\{L\_\{[\{\textbackslashtext \{unk]\}\}\}\} +
               \{L\_\{[\{\textbackslashtext \{unk]\}\}\}\}) . Small diagrams
               indicate otherwise identical parts of larger diagrams. Regular
               isotopy is the equivalence relation generated by the
               Reidemeister moves of type II and type III. Invariants of
               ambient isotopy are obtained from L L by writhe-normalization.},
  journal   = {Trans. Am. Math. Soc.},
  publisher = {American Mathematical Society (AMS)},
  volume    = 318,
  number    = 2,
  pages     = {417--471},
  year      = 1990,
  language  = {en}
}

@online{wiki:wild_knot,
  author = {Jkasd},
  title  = {Wild knot.svg},
  year   = {2008},
  url    = {https://commons.wikimedia.org/wiki/File:Wild_knot.svg},
  note   = {Public domain, via Wikimedia Commons}
}

@book{crowell1977introduction,
  title     = {Introduction to Knot Theory},
  author    = {Crowell, R.H. and Fox, R.H.},
  isbn      = {9783540902720},
  lccn      = {77022776},
  series    = {Graduate Text in Mathematics},
  year      = {1977},
  publisher = {Springer New York}
}
