@book{nielsen:1965:dg,
    author = {Nielsen, Niels},
     title = {Die {G}ammafunktion. {B}and {I}. {H}andbuch der {T}heorie der
              {G}ammafunktion. {B}and {II}. {T}heorie des
              {I}ntegrallogarithmus und verwandter {T}ranszendenten},
 publisher = {Chelsea Publishing Co.},
   address = {New York},
      year = {1965},
  language = {German},
      note = {Both books are textually unaltered except for correction of errata.},
     pages = {Band I: x+326 pp. Band II: vi+106},
   mrclass = {33.15},
  mrnumber = {MR0185152 (32 \#2622)}}