• The Telefunken RA 770 Analog Computer http://www.analogmuseum.org/english/collection/telefunken/ra770/ 10 comments 19/10/2022
• The Analog Computer Museum http://www.analogmuseum.org/english/ 14 comments 12/3/2020
• Handbook of Analog Computation [pdf] http://www.analogmuseum.org/library/handbook_of_analog_computation.pdf 8 comments 21/3/2019