An excitation function of the Au on Au reaction from 100 to 1050 A MeV was measured using the FOPI-facility at GSI Darmstadt. Nuclear charge (Z#<=#15) and velocity of the product were detected with full azimuthal acceptance at laboratory angles 1 #<=##THETA#_l_a_b#<=#30 . For the first time an analysis is presented which combines the azimuthally asymmetric part of the transverse flow (sidewards flow), stopping and the associated collision geometry. In comparison to microscopic transport model calculations we demonstrate the relevance of this method for the extraction of the nuclear equation of state. (orig.)Available from TIB Hannover: RO 801(94-74) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman