Stephenson könyve;
https://books.google.hu/books?id=H3jTjYMcPF4C&pg=PA537&lpg=PA537&dq=Stephenson+Historical+eclipses+and&source=bl&ots=ZOcNfH5JYQ&sig=Dhfc1J8SLQ-f1HqUMPMMdNmlVkg&hl=hu&sa=X&ved=0ahUKEwin9crW7rrVAhVMthQKHecuA4w4ChDoAQhQMAY#v=onepage&q=Stephenson%20Historical%20eclipses%20and&f=false