Conditions of use

Is the material on Henri Poincaré Papers protected by copyright?
Some of the documents on Henri Poincaré Papers appear by courtesy of copyright owners; look for the copyright mark, which appears on all copyrighted images. Scanned images have their origin, for the most part, in four main sources: the Archives of the Paris Academy of Sciences, the Library of the French Institute, the Nobel Archives of the Royal Swedish Academy of Sciences, and a private collection. Reproduction of images is subject to the authorization of the copyright holder. As for the transcriptions and annotations, these are protected by a Creative Commons (CC BY-ND 4.0) license.

How should I cite the documents published by Henri Poincaré Papers?
There are two cases to consider:
1. Scanned images under copyright of the Nobel Archives should be cited as follows: "Nobel Archives of the Royal Swedish Academy of Sciences, Stockholm".
2. All other documents, either images or texts, should be cited as follows: "Scott A. Walter, ed., Henri Poincaré Papers, Doc. N-N-N, http://henripoincarepapers.univ-nantes.fr/chp/[filename], consulted on YYYY-MM-DD".