1   Turner D.G., Forbes D., Pedreros M.
        (1992)  Astron. J. 104, 1132
        Galactic clusters with associated cepheid variables. 
        II. NGC 129 and DL Cassiopeiae

    2   Turner D.G.
        (1992)  Astron. J. 104, 1865
        Galactic clusters with associated cepheid variables. 
        III. NGC 1647 and SZ Tauri

    4   Forbes D., English D., de Robertis M.M., Dawson P.C.
        (1992)  Astron. J. 103, 916
        Membership of the WR binary system V444 Cygni in the young
        open cluster Berkeley 86

    5   Turner D.G., Forbes D.
        (1982)  Publ. Astron. Soc. Pacific 94, 789
        Berkeley 87, a heavily-obscured young open cluster associated
        with the ON2 star-formation complex and containing the W0
        star Stephenson 3

    6   Turner D.G., Moffat A.F.J., Lamontagne R., Maitzen H.M.
        (1983)  Astron. J. 88, 1199
        The WN4.5 component of HD 219460 in the open cluster Markarian 50

    7   Moffat A.F.J., Fitzgerald M.P., Jackson P.D.
        (1977)  Astrophys. J. 215, 106
        Trumpler 27. A heavily reddened young open cluster with blue and red
        supergiants

    8   Turner D.G., Mandushev G.I., Forbes D.
        (1994)  Astron. J. 107, 1796
        Galactic clusters with associated cepheid variables.
        IV. C2128+488 (Anon. Platais) and V1726 Cygni

    9   Haikala L.K.
        (1994)  Astron. Astrophys. 294, 89
        UBVRI photometry and polarimetry of the stars in S252 (NGC 2175).
        II. Interpretation

   10   Vazquez R.A., Will J.-M., Prado P., Feinstein A.
        (1995)  Astron. Astrophys. Suppl. 111, 85
        A detailed study of the open cluster Pismis 20

   11   Guetter H.H.
        (1992)  Astron. J. 103, 197
        Photometric studies of stars in the young open cluster NGC 6823

   12   Forbes D., Short S.
        (1996)  Astron. J. 111, 1609
        BGC 6204 and Hogg 22: the odd couple

   13   Kwon S.M., Lee S.-W.
        (1983)  J. Korean Astron. Soc. 16, 7
        Photoelectric observations of extremely young open clusters

   14   Forbes D.
        (1996)  Astron. J. 112, 1073
        Star formation in NGC 6531 - Evidence from age spread and initial 
        mass function

   15   Guetter H.H., Turner D.G.
        (1997)  Astron. J. 113, 2116
        IC 1590, a young cluster embedded in the nebulosity of NGC 281

   16   The P.S., de Winter D., Feinstein A., Westerlund B.E.
        (1989)  Astron. Astrophys. Suppl. 82, 319
        The extinction law, the distance and the HR diagram of the extremely
        young open cluster NGC 6611

   17   Vazquez R.A., Feinstein A.
        (1991)  Astron. Astrophys. Suppl. 87, 383
        The young open cluster NGC 5606