Hossein Mirzaee and Farhad Besharati , Remote-Sensing Sunspot Images to Obtain the Sunspot Roads . journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2007, vol. 3(3). 581 - 585 [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/5635.