ASTEX - An In-Situ Exploration Mission to Two Near-Earth-Asteroids Nathues, A. ; Boehnhardt, H. ; Harris, A. W. ; Goetz, W. ; Gritzner, C. ; Jentsch, C. ; Schmitz, N. ; Schaeff, S. ; Weischede, F. ; Wiegand, A. Abstract Publication: Asteroids, Comets, Meteors 2008 Pub Date: 2008 Bibcode: 2008LPICo1405.8076N