@book{hobson:1931:seh,
    author = {Hobson, E. W.},
     title = {The Theory of Spherical and Ellipsoidal Harmonics},
 publisher = {Cambridge University Press},
   address = {London-New York},
      year = {1931},
     pages = {xi+500},
      note = {Reprinted by Chelsea Publishing Company, New York, 1955 and 1965.},
   mrclass = {33.0X},
  mrnumber = {MR0064922 (16,356i)},
      isbn = {0-8284-0104-7},
     zblno = {0004.21001}}