Jahrbuch Project has compiled this Electronic Research Archives for Mathematics that includes "the most important mathematical publications of the period 1868-1942 and a database based on the 'Jahrbuch über die Fortschritte der Mathematik'" or JFM. The project's directors have posted articles of JFM, which was founded in 1868 by the mathematicians Carl Ohrtmann and Felix Müller, because they are "still valuable sources for mathematical research and teaching." The website includes a project description along with a fully searchable database. The articles are in multiple languages, including English, German, French, and Russian.