Bisht, D.; Yadav, R. K. S.; Durgapal, A. K.
(Elsevier, 2013)
We present the broad band UBVI CCD photometric investigations in the region of the two open clusters
Haffner 11 and Czernik 31. The radii of the clusters are determined as 3'.5 and 3'.0 for Haffner 11 and
Czernik 31 ...