References

• Abell G.O., Corwin H.G., Olowin O.P., 1989, ApJS 70, 1 NASA ADS
• Allen S.W., Fabian A.C., Edge A.C., Böhringer H., White D.A, MNRAS 275, 741
• Beers T.C., Flynn K., Gebhardt K., 1990, AJ 100, 32 NASA ADS
• Bertin E., Arnouts S., 1996, A&AS 117, 393 NASA ADS
• Bird C.M., Beers T.C., 1993, AJ 105, 1596 NASA ADS
• Christian C.A., Adams M., Barnes J.V., Buchter H., Hayes D.S., Mould J.R., Siegel M., 1985, PASP 97, 363 NASA ADS
• Danese L., De Zotti G., di Tullio G., 1980, A&A 82, 322 NASA ADS
• Pierre M., Hunstead R., Reid A., et al., 1994a, ESO Messenger December 1994; Multi-wavelength study of ROSAT clusters of galaxies
• Pierre M., Böhringer H., Ebeling H., Voges W., Schuecker P., Cruddace R., MacGillivray H., 1994b, A&A 290, 725 NASA ADS
• Robin A., 1995, WWW
• Tonry J., Davis M., 1979, AJ 84, 1511 NASA ADS