Col Reference--- ---------
R1 Grubissich C., Purgathofer A. 1962, Z. Astrophys. 54, 41
R2 van Schewick H. 1967, Veroeff. Astr. Inst. Univ. Bonn no 76
R3 Hoag A.A., et al. 1961, Publ. US. Nav. Obs. 17, 347 (pe)
R4 Hoag A.A., et al. 1961, Publ. US. Nav. Obs. 17, 347 (pg)
R5 Bergedorfer Spectral Durchmusterung S.A. 98
R6 Mostafa A.A., et al. 1983, J. Astron. Soc. Egypt 5, 23
R7 Aiad A. 1986, Bull. Fac. Sci. Cairo Univ. 54, 729
R8 Mohan V., et al 1988, Astron.Astrophys.Suppl. 73, 85
R9 Mohan V., Sagar R. 1988, Bull. Astr. Soc. India 16, 159
R10 Kim S.-L., et al. 2001 Astron. Astrophys. 371, 571
R11 Sharma S. et al., 2006, Astron. J. 132, 1669
Back to the form