Ca82 1982MNRAS.200p..33C Catchpole DB00 2000A&A...359L...9D Dutra & Bica DHM99 1999A&AS..139..321D Dominici et al. Cat. Fe02 2002A&A...392..971F Felli et al. Cat. FW87 1987ApJ...320..199F Frogel & Whitford GF82 1982MNRAS.198..199G Glass & Feast GS03 2003MNRAS.345...39G Glass & Schultheis GWCF 1995MNRAS.273..383G Glass et al. G86 1986MNRAS.221..879G Glass et al. G99 1999MNRAS.308..127G Glass et al. Iz95 1995ApJ...453..837I Izumiura et al. Ko02 2002AN....323...57K Kohoutek Kw97 1997ApJS..112..557K Kwok et al. Cat. MT95 1995AJ....109.1770M Medina Tanco & Steiner MZ02 2002A&A...383..188M Munari & Zwitter Cat. LE76 1976MNRAS.174..169L Lloyd-Evans LH91 1991A&AS...90..327T te Lintel Hekkert et al. Cat. Me02 2002A&A...393..115M Messineo et al. Cat. Pa03 2003A&A...403..937P Paunzen et al. Cat. R84 1984AnTok..19..469R Raharto et al. Se97 1997A&AS..122...79S Sevenster et al. Cat. Si90 1990A&A...233..112S Sivagnanam et al. TG91 1991A&AS...90..451T Terzan & Gosset Cat. TO88 1988A&AS...76..205T Terzan & Ounnas Cat.