Spectrophotometric Studies of Nonstable Stars - Part Four - on the Spectrum of V1057-CYGNI Chalonge, D. ; Divan, L. ; Mirzoyan, L. V. Abstract Publication: Astrophysics Pub Date: April 1982 DOI: 10.1007/BF01004536 Bibcode: 1982Ap.....18..161C