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Генрих Куммер и его счислитель
Гл. 9. С. 76–82.
Shilov V., Лейпяля Т.
The article tells of one of the most famous calculating instruments designed in Russia in 19th century – Kummer's slide adder. For the first time the detailed biography of its author, German musician and inventor Heinrich Kummer is described.
In book
СПб.: Наука, 2014.