Östreicher, R., & Seifert, W. (1992). Hydrogen in the strong magnetic field of the white dwarf PG 1031+234. Astronomy and astrophysics, 257, .
Chicago Style (17th ed.) CitationÖstreicher, Roland, and Walter Seifert. "Hydrogen in the Strong Magnetic Field of the White Dwarf PG 1031+234." Astronomy and Astrophysics 257 (1992).
MLA (9th ed.) CitationÖstreicher, Roland, and Walter Seifert. "Hydrogen in the Strong Magnetic Field of the White Dwarf PG 1031+234." Astronomy and Astrophysics, vol. 257, 1992.
Warning: These citations may not always be 100% accurate.