Note 554 — Chapter XVII · SPECTROSCOPIC BINARIES.
Reading edition
Memorie degli Spettroscopisti Italiani, vols. xxvi., xxviii.; Bulletin de l’Acad. des Sciences, St. Pétersbourg, t. vi. No. 1, t. viii. No. 2.
Reading edition
Memorie degli Spettroscopisti Italiani, vols. xxvi., xxviii.; Bulletin de l’Acad. des Sciences, St. Pétersbourg, t. vi. No. 1, t. viii. No. 2.