@BOOK{TAOCP2,
  crossref = "TAOCP",
  title = "Seminumerical Algorithms",
  volume = 2,
  series = "The Art of Computer Programming",
  edition = "Second",
  year = 1981,
}
@BOOK{TAOCP,
  author = "Donald E. Knuth",
  publisher = "Addison-Wesley",
  title = "The Art of Computer Programming",
  series = {7 B\"ande},
  year = 1968,
}