A catalogue of hydrogen-deficient stars Jeffery, C. S. ; Heber, U. ; Hill, P. W. ; Dreizler, S. ; Drilling, J. S. ; Lawson, W. A. ; Leuenhagen, U. ; Werner, K. Abstract Publication: Hydrogen Deficient Stars Pub Date: 1996 Bibcode: 1996ASPC...96..471J