 @misc{ wiki:1,
   author = "Wikipedia",
   title = "Geodetic system --- Wikipedia{,} The Free Encyclopedia",
   year = "2010",
   url = "\url{http://en.wikipedia.org/w/index.php?title=Geodetic_system&oldid=382672935}",
   note = "[Online; accessed 22-September-2010]"
 }
@book{Wendel__2007,
    author = {Wendel, Jan},
    citeulike-article-id = {7547540},
    posted-at = {2010-07-28 08:23:54},
    priority = {2},
    publisher = {Oldenbourg},
    title = {Integrierte Navigationssysteme. Sensordatenfusion, GPS und Inertiale Navigation: Sensordaten, GPS und Inertiale Navigation},
    year = {2007}
}
