% 3k+1 bibliography

@book {Wi98,
    author = {Wirsching, Günther J.},
     title = {The dynamical system generated by the $3n+1$ function},
 publisher = {Springer-Verlag},
    series = {Lecture Notes in Mathematics},
    volume = {1681},
   address = {Berlin},
      year = {1998},
     pages = {viii+158},
      isbn = {3-540-63970-5}
}

