INTERHELIOS - Sun and Heliosphere Observer Marsch, E. ; Kogan, A. ; Axford, W. I. ; Breus, T. ; Kuznetsov, V. D. ; Oraevsky, V. N. Abstract Publication: Crossroads for European Solar and Heliospheric Physics. Recent Achievements and Future Mission Possibilities Pub Date: 1998 Bibcode: 1998ESASP.417...91M