De zonsbeweging met betrekking tot apparent zwakke sterren
Publisher: Gebroeders Hoitsema
Published: 1926
Place of publication: Groningen
Language: dut
Number of pages: 35
Subjects: Stars; Proper motion
Notes: Thesis (Ph.D.)--Rijksuniversiteit te Groningen, 1926.

Includes bibliographical references (p. [35]).