An Improved Cluster Richness Estimator
Journal article published in 1970 by
Eduardo Rozo,
Eli S. Rykoff,
Benjamin P. Koester,
Timothy McKay,
Jiangang Hao,
August Evrard 
,
Risa H. Wechsler ,
Sarah Hansen,
Erin Sheldon,
David Johnston,
Matthew R. Becker,
James T. Annis,
Lindsey Bleem ,
Ryan Scranton
,
Risa H. Wechsler ,
Sarah Hansen,
Erin Sheldon,
David Johnston,
Matthew R. Becker,
James T. Annis,
Lindsey Bleem ,
Ryan Scranton
