APA (7th ed.) Citation

Diercke, A., Arlt, R., & Denker, C. (2015). Digitization of sunspot drawings by Spörer made in 1861 - 1894.

Chicago Style (17th ed.) Citation

Diercke, A., R. Arlt, and C. Denker. Digitization of Sunspot Drawings by Spörer Made in 1861 - 1894. 2015.

MLA (9th ed.) Citation

Diercke, A., et al. Digitization of Sunspot Drawings by Spörer Made in 1861 - 1894. 2015.