by Ivezic, Z., Axelrod, T., Brandt, W.N., Burke, D.L., Claver, C.F., Connolly, A., Cook, K.H., Gee, P., Gilmore, D.K., Jacoby, S.H., Jones, R.L., Kahn, S.M., Kantor, J.P., Krabbendam, V., Lupton, R.H., Monet, D.G., Pinto, P.A., Saha, A., Schalk, T.L., Schneider, D.P.
Published in Serbian astronomical journal. (01.06.2008)

by LIEBERT, J, DAHN, C. C, MONET, D. G
Published in The Astrophysical journal (01.09.1988)

by Ivezić Ž., Axelrod T., Brandt W.N., Burke D.L., Claver C.F., Connolly A., Cook K.H., Gee P., Gilmore D.K., Jacoby S.H., Jones R.L., Kahn S.M., Kantor J.P., Krabbendam V., Lupton R.H., Monet D.G., Pinto P.A., Saha A., Schalk T.L., Schneider D.P.
Published in Serbian astronomical journal. (01.01.2008)

by Monet, D. G., Schechter, P. L., Richstone, D. O.
Published in The Astrophysical journal (15.04.1981)