@unpublished{FreedenFehlingerMayeretal.2007,
  author  = {Willi Freeden and Thomas Fehlinger and Carsten Mayer and Michael Schreiner},
  title   = {On the Local Multiscale Determination of the Earth`s Disturbing Potential From Discrete Deflections of the Vertical},
  institution = {Fachbereich Mathematik},
  series    = {Schriften zur Funktionalanalysis und Geomathematik},
  number    = {32},
  year    = {2007},
  url  = {http://nbn-resolving.de/urn:nbn:de:hbz:386-kluedo-15228},
}