Col Reference --- --------- R1 Moffat A.F.J., Vogt N. 1973, Astron. Astrophys. Suppl. 10,135 R2 Seggewiss W. 1971, Veroff. Astr. Inst. Bonn No 83 Back to the form
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R1 Moffat A.F.J., Vogt N. 1973, Astron. Astrophys. Suppl. 10,135
R2 Seggewiss W. 1971, Veroff. Astr. Inst. Bonn No 83