APA (7th ed.) Citation

Zweigle, J., Appenzeller, I., Krautter, J., & Mandel, H. (1997). ORFEUS observation of the central star of NGC 6543. Planetary nebulae ; proceedings of the 180th Symposium of the International Astronomical Union, held in Groningen, August, 26 - 30, 1996.

Chicago Style (17th ed.) Citation

Zweigle, Jürgen, Immo Appenzeller, Joachim Krautter, and Holger Mandel. "ORFEUS Observation of the Central Star of NGC 6543." Planetary Nebulae ; Proceedings of the 180th Symposium of the International Astronomical Union, Held in Groningen, August, 26 - 30, 1996 1997.

MLA (9th ed.) Citation

Zweigle, Jürgen, et al. "ORFEUS Observation of the Central Star of NGC 6543." Planetary Nebulae ; Proceedings of the 180th Symposium of the International Astronomical Union, Held in Groningen, August, 26 - 30, 1996, 1997.