S. Els

发表

R. Zivanovic, B. Bitzer, R. Biernatzki, 2004, 2004 IEEE Africon. 7th Africon Conference in Africa (IEEE Cat. No.04CH37590).

N. Cheek, W. O'Mullane, A. Vallenari, 2014, Astronomical Telescopes and Instrumentation.

J. Seguel, W. Skidmore, T. Travouillon, 2009, 0904.1183.