On Sunspots
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- Author: Galileo Galilei, Christoph Scheiner, Albert van Helden, Eileen Reeves, Eileen Reeves, Albert van Helden
- Language: English
- Year: 2010
- Author: Albert Van Helden
- Language: English
- Year: 2010
- Author: Galileo Galilei, Albert van Helden
- Language: Italian
- Year: 2016
- Author: Albert Van Helden
- Language: English
- Year: 1985
- Author: Albert Van Helden (auth.) Ida H. Stamhuis Teun Koetsier Cornelis De Pater Albert Van Helden (eds.)
- Language: English
- Year: 2002