@BOOK{goossens:1994,
  author = {Michel Goossens and Frank Mittelbach and Alexander Samarin},
  title = {The {\LaTeX} Companion},
  year = {1994},
  publisher = {Addison-Wesley},
  address = {New York},
}

@BOOK{lutz:2003,
  author = {Mark Lutz and David Ascher},
  title = {Learning Python},
  year = {2003},
  publisher = {O'Reilly Press},
  address = {Sebastopol}  
}