@article{lopez:2010:chf,
    author = {L{\'o}pez, Jos{\'e} L. and Pagola, Pedro J.},
     title = {The confluent hypergeometric functions {$M(a,b;z)$} and
              {$U(a,b;z)$} for large {$b$} and {$z$}},
   journal = {J. Comput. Appl. Math.},
  fjournal = {Journal of Computational and Applied Mathematics},
    volume = {233},
      year = {2010},
    number = {6},
     pages = {1570–1576},
      issn = {0377-0427},
     coden = {JCAMDI},
   mrclass = {33C15 (41A60)},
  mrnumber = {2559347 (2010k:33008)},
       doi = {10.1016/j.cam.2009.02.072},
     links = {\URL[FullText]{http://dx.doi.org/10.1016/j.cam.2009.02.072}},
     zblno = {1185.33005}}