@article{hille:1929:nsh,
    author = {Hille, E.},
     title = {Note on some hypergeometric series of higher order},
   journal = {J. London Math. Soc.},
  fjournal = {Journal of the London Mathematical Society},
    volume = {4},
      year = {1929},
     pages = {50–54},
     zblno = {55.0219.03},
       doi = {10.1112/jlms/s1-4.1.50}}