Cosmic shear analysis of archival HST/ACS data - I. Comparison of early ACS pure parallel data to the HST/GEMS survey
T. Schrabback, T. Erben, P. Simon, J.-M. Miralles, P. Schneider, C. Heymans, T. Eifler, R. A. E. Fosbury, W. Freudling, M. Hetterscheidt, H. Hildebrandt and N. Pirzkal
