AMS Digital Mathematics Registry (DMR), provide centralized access to certain collections of digitized publications in the mathematical sciences. The registry is primarily focused on older material from journals and journal-like book series that originally appeared in print but now is available in digital form.
Gallica. A Bibliotheque Nationale de France project of 244 digitized
mathematics titles includes many important 19th century monographs, serial back sets, and collected works of
mathematicians.
GDZ, Göttinger Digitalisierungs-Zentrum, Mathematica. German retrospective digitization of 18th and 19th century journals, multivolume sets
and monographs.
JSTOR. The collection includes the complete back files of
16 mathematics journals and 20 statistics journals. It also includes a number of general science journals
that have mathematical and statistical articles. UW restricted
NUMDAM
NUMérisation de Documents Anciens Mathématiques. French project to digitize older French journals and seminars. Includes
Annales de l'Institut Fourier and Journées Équations aux Dérivées Partielles.
La Bibliothèque Gallica-Math, Cellule MathDoc search interface to article level of collected works in GAllica, Journal de Mathématiques Pures et
Appliquées (1836-1881+), and Répertoire Bibliographique des Sciences Mathématiques (1894-1912).
LiNuM, Livres Numérisés Mathématiques. This
interface under development searches the Gallica, Cornell, Göettingen, and Michigan collections.
Some Gallica titles may not be accessible thru this interface.
WDML, World Digital Mathematics Library. The Committee on Electronic Information and Communication (CEIC) of the International mathematical Union has made a commitment to coordinate further efforts to achieve a world-wide digital library. This site contains information about the World Digital Mathematics Library project and will be updated as the effort continues.
EMANI, Electronic Mathematics Archives Network Initiative. A coalition of
libraries and Springer-Verlag hope to provide long term preservation and access to mathematics literature. List of available titles.