@Book{russell03ai,
  author = {Stuart Russell and Peter Norvig},
  title  = {Artificial Intelligence: A Modern Approach},

  year   = {2003},
  number = {},
  url    = {},

  const  = {\ text}
}
@Book{RussellNorvig,
  author = {Stuart J. Russell and Peter Norvig},
  title  = {Artificial Intelligence. A Modern Approach.},

  year   = {2003},
  number = {},
  url    = {},

  const  = {\ text}
}