"Stellingen" inserted.Proefschrift (Ph. D.)--Rijksuniversiteit te Leiden, 1921.Mode of access: Internet
"Stellingen" ([3] p.) inserted at end.Thesis (doctoral)--Technische Hoogeschool te Delft, 1917.Inclu...
Published also with half-title, in Washington observations, 1884--published 1889.Mode of access: Int...
Mode of access: Internet.Issued by Astrophysikalisches institut der Grossh. badischen sternwarte.Con...
"Part of the material has been taken from a series of articles in Popular astronomy."--Pref."First p...
Reprinted from the Proceedings of the American academy of arts and sciences, vol. XVI.Mode of access...
Thesis (doctoral)--Ludwig-Maximilians Universität München, 1914.Mode of access: Internet
From the Proceedings of the Royal Irish Academy, ser. 2, v. 4.Mode of access: Internet
Detached from the Proceedings of the Royal Irish Academy, ser. 2, v. 4.A paper read before the Royal...
"Original and compiled from standard authorities by members of the American Association of Variable ...
Thesis (doctoral)--Rijksuniversiteit te Leiden, 1852.Includes bibliographical references.Mode of acc...
[Auch in: Astron. and Meteorol.Observations made at the U.S. naval Observatory, 1871, 1873].Mode of ...
Mode of access: Internet.Issued by the Observatory under the following name variants: K. Sternwarte ...
"Stellingen": p. [129]-135.Proefschrift--Leiden.Bibliographical footnotes.Mode of access: Internet
Proefschrift--Groningen.Includes bibliographical references (p. 122-126).Mode of access: Internet
From Astrophysical journal. v.6, no.1, June, 1897.Thesis (Ph.D.)--Leland Stanford junior university....
"Stellingen" ([3] p.) inserted at end.Thesis (doctoral)--Technische Hoogeschool te Delft, 1917.Inclu...
Published also with half-title, in Washington observations, 1884--published 1889.Mode of access: Int...
Mode of access: Internet.Issued by Astrophysikalisches institut der Grossh. badischen sternwarte.Con...
"Part of the material has been taken from a series of articles in Popular astronomy."--Pref."First p...
Reprinted from the Proceedings of the American academy of arts and sciences, vol. XVI.Mode of access...
Thesis (doctoral)--Ludwig-Maximilians Universität München, 1914.Mode of access: Internet
From the Proceedings of the Royal Irish Academy, ser. 2, v. 4.Mode of access: Internet
Detached from the Proceedings of the Royal Irish Academy, ser. 2, v. 4.A paper read before the Royal...
"Original and compiled from standard authorities by members of the American Association of Variable ...
Thesis (doctoral)--Rijksuniversiteit te Leiden, 1852.Includes bibliographical references.Mode of acc...
[Auch in: Astron. and Meteorol.Observations made at the U.S. naval Observatory, 1871, 1873].Mode of ...
Mode of access: Internet.Issued by the Observatory under the following name variants: K. Sternwarte ...
"Stellingen": p. [129]-135.Proefschrift--Leiden.Bibliographical footnotes.Mode of access: Internet
Proefschrift--Groningen.Includes bibliographical references (p. 122-126).Mode of access: Internet
From Astrophysical journal. v.6, no.1, June, 1897.Thesis (Ph.D.)--Leland Stanford junior university....
"Stellingen" ([3] p.) inserted at end.Thesis (doctoral)--Technische Hoogeschool te Delft, 1917.Inclu...
Published also with half-title, in Washington observations, 1884--published 1889.Mode of access: Int...
Mode of access: Internet.Issued by Astrophysikalisches institut der Grossh. badischen sternwarte.Con...