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The Nobel Prize: The Nobel Prize in Physics 1910 Award Ceremony Speech
Here is the full text of the 1910 Nobel Prize in Physics presentation speech. given by Professor O. Montelius. It describes Johannes Diderik van der Waals' scientific contributions, which earned him the Nobel Prize in Physics.
Nobel Media AB
The Nobel Prize: Johannes Diderick Van Der Waals Biographical
This site from the Nobel eMuseum of the Nobel Foundation provides an excellent overview of Johannes van der Waals. This detailed biography covers all aspects of his life, with a particular emphasis on his scientific achievements.
Nobel Media AB
The Nobel Prize: J. D. Van Der Waals Nobel Lecture
At this site download and read Johannes Diderik van der Waals Nobel Lecture from The Nobel Foundation, "The equation of state for gases and liquids" (in pdf format).