First results from the ROSAT wide field camera source identification programmeK. O. Mason, M. G. Watson, P. A. Charles et al.|Vistas in Astronomy|1991Cited by 3
VizieR Online Data Catalog: Optical Identifications of ROSAT EUV Sources (Mason+ 1995)K. O. Mason, David Wonnacott, B. J. M. Hassall et al.|VizieR Online Data Catalog|1996Cited by 0