Galaxy groups at 0.3 $łt$=z$łt$= 0.55 - I. Group properties
Journal article published in 2005 by
D.~J Wilman 
,
M.~L Balogh,
R.~G Bower,
J.~S Mulchaey,
A. Oemler,
R.~G Carlberg,
S.~L Morris,
R.~J Whitaker
,
M.~L Balogh,
R.~G Bower,
J.~S Mulchaey,
A. Oemler,
R.~G Carlberg,
S.~L Morris,
R.~J Whitaker
