%0 Journal Article %A Gerhard Schäfer %T Post-Newtonian approximations and equations of motion of general relativity %J Banach Center Publications %D 1997 %P 43-53 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/-41-2-43-53/ %R 10.4064/-41-2-43-53 %G en %F 10_4064__41_2_43_53