26 June 2009 UTC Yes but if phrased properly it is just a statement of fact We simply can not say that Winterberg intended for that application but it today is indeed used in that way It could be phrased like this The general relativistically corrected equations to properly treat signals from atomic clocks in satellites first published in 1956 by Friedwardt Winterberg are today used by the Global Positioning System to obtain the necessary satellite precision for GPS 173 169 90 98 03 16