References for the numbering systems

Col	Reference

---	---------

R1	Hassan S.M. 1967, Z. Astrophys. 66, 6

R2	Hoag A.A., et al. 1961, Publ. US Nav. Obs. 17, 347  (pe)

R3	Hoag A.A., et al. 1961, Publ. us nav. Obs. 17, 347  (pe)

R4	

R5	

R6	

R7	

R8	

R9	

R10	

R11	

R12	

R13	

R14	Voroshilov V.I., et al. 1969, BV Catalogue of 12000 stars. Kiev

Back to the form