@article{yoshida:1995:cok,
    author = {Yoshida, Toshio},
     title = {Computation of {K}ummer functions ${U}(a,b,x)$ for large
              argument $x$ by using the $\tau$-method},
   journal = {Trans. Inform. Process. Soc. Japan},
  fjournal = {Information Processing Society of Japan. Transactions},
    volume = {36},
      year = {1995},
    number = {10},
     pages = {2335–2342},
  language = {Japanese},
      note = {Japanese with English summary. Double-precision Fortran.},
      issn = {0387-5806},
   mrclass = {65D20 (65L99)},
  mrnumber = {MR1363484 (96g:65030)},
     links = {\URL[FullText]{http://nels.nii.ac.jp/els/110002721954.pdf?id=ART0003009184&type=pdf&lang=en&host=cinii&order_no=&ppv_type=0&lang_sw=&no=1252945834&cp=}}}