Material description : In-4° , II-158 p.
Edition : 1909 Leipzig F. Eckardt
Material description : In-4° , XV-722 p.
Edition : 1915 Berlin J. Springer
Material description : In-8° , III-141 p.
Edition : 1906 Heidelberg Buchdruckerei von K. Rössler
The Virtual International Authority File (VIAF) is an international authority file. It is a joint project of several national libraries
Idref is the authority database (author, title) of the union catalogue for France's higher education libraries (SUDOC)
ISNI is an international certified number (ISO 27729) that uniquely identifies persons and organisations.
DBpedia is a project aiming to extract structured content from the information created as part of the Wikipedia project.