@book{AFP3,
  author    = {Swierstra, D. and Henriques, P. and Oliveira, J.},
  title     = {Advanced Functional programming, Third International School, AFP'98},
  publisher = {Springer},
  year      = {1999},
  isbn      = {9 783540 662419},
  series    = {LNCS},
  number    = {1608},
}