@phdthesis{76175, author = {J. Rinne}, title = {Controlling a large data sample with the aid of empirical orthogonal functions}, year = {1977}, journal = {Workshop on the use of Empirical Orthogonal functions in Meteorology}, pages = {134-140}, month = {1977}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }