Balloon X-ray astronomical observations : a China-Japan collaborative transoceanic flight. Hang, H. -R. ; Zang, Z. -Y. ; Liu, S. -Z. ; Ma, G. -Q. ; Gong, I. -Z. ; Yamagami, T. ; Nakagawa, M. Abstract Publication: Publications of the Astronomical Society of Australia Pub Date: 1991 DOI: 10.1017/S132335800002511X Bibcode: 1991PASA....9..111H