APA (7th ed.) Citation

Sbarufatti, B., & Heidt, J. (2006). ESO-VLT optical spectroscopy of BL Lac objects: II. New redshifts, featureless objects and classification assessments. The astronomical journal, 132(1), . https://doi.org/10.1086/503031

Chicago Style (17th ed.) Citation

Sbarufatti, Boris, and Jochen Heidt. "ESO-VLT Optical Spectroscopy of BL Lac Objects: II. New Redshifts, Featureless Objects and Classification Assessments." The Astronomical Journal 132, no. 1 (2006). https://doi.org/10.1086/503031.

MLA (9th ed.) Citation

Sbarufatti, Boris, and Jochen Heidt. "ESO-VLT Optical Spectroscopy of BL Lac Objects: II. New Redshifts, Featureless Objects and Classification Assessments." The Astronomical Journal, vol. 132, no. 1, 2006, https://doi.org/10.1086/503031.