Occasional Spectrographic Observations of Eclipsing Binaries. Struve, O. ; Horak, H. G. ; Canavaggia, R. ; Kourganoff, V. ; Colacevich, A. Abstract Publication: The Astrophysical Journal Pub Date: May 1950 DOI: 10.1086/145314 Bibcode: 1950ApJ...111R.658S