%0 Journal Article %A C. L. Dolph %T Positive real resolvents and linear passive Hilbert systems %J Annales Fennici Mathematici %D 1964 %V 336-344 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1964.336-09/ %R 10.5186/aasfm.1964.336-09 %G en %F AFM_1964_336-344_a15