Böhringer, H. High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society; Theory and Complex Plasmas, MPI for Extraterrestrial Physics, Max Planck Society;
Arnaud, M., Elbaz, D., Böhringer, H., Soucail, G., & Mathez, G. (1994). X-ray and optical observations of A2163, an exceptionally massive galaxy cluster. In F. Makino Ohashi T. (Ed.), New horizon of x-ray astronomy - first results from ASCA (pp. 537-538). Tokyo: Universal Academy Press, Inc.