@book{nijenhuis:1975:ca,
    author = {Nijenhuis, Albert and Wilf, Herbert S.},
     title = {Combinatorial Algorithms},
 publisher = {Academic Press},
   address = {New York},
      year = {1975},
     pages = {xiv+253},
      isbn = {0-12-519250-9},
   mrclass = {05-02 (68A10)},
  mrnumber = {MR0396274 (53 \#142)},
mrreviewer = {Alon Itai},
     zblno = {0343.68004}}