@book{knottnerus:1960:afg,
    author = {Knottnerus, U. J.},
     title = {Approximation Formulae for Generalized Hypergeometric
              Functions for Large Values of the Parameters},
 publisher = {J. B. Wolters},
   address = {Groningen},
      year = {1960},
     pages = {vii+166},
   mrclass = {33.00},
  mrnumber = {MR0111870 (22 \#2730)},
mrreviewer = {L. J. Slater},
     zblno = {0090.04501}}