Херман фон Хелмхолц — разлика између измена

* David Cahan (Ed.): ''Hermann von Helmholtz and the Foundations of Nineteenth-Century Science.''. University California, Berkeley. {{page|year=1994|isbn=978-0-520-08334-9|pages=}}.

* {{cite book|author=Gregor Schiemann: ''|title=Hermann von Helmholtz's Mechanism: The Loss of Certainty. A Study on the Transition from Classical to Modern Philosophy of Nature''.|location= Dordrecht: |publisher=Springer. {{page|year=2009|isbn=978-1-4020-5629-1|pages=}}.