@article{konishi:1996:ccp,
    author = {Konishi, Eiichi},
     title = {Calculation of complex polygamma functions},
   journal = {Sci. Rep. Hirosaki Univ.},
  fjournal = {Science Reports of the Hirosaki University},
    volume = {43},
      year = {1996},
    number = {1},
     pages = {161–183},
      issn = {0367-6439},
     coden = {HUSRAK},
   mrclass = {65D20 (33B15)},
  mrnumber = {MR1426550 (97m:65043)},
     zblno = {0861.33016}}