文摘
In more than 90 years history, plenty of featured scientific literature has been accumulated at Tsinghua Univ. Library. From 2001, we participated in the international cooperative initiative EMANI (Electronic Mathematics Archiving Network Initiative) together with SUB Goettingen (Germany), Cornell University Library (USA), MathDoc (France) and the Springer Press. The major idea of this project is the cooperation can promote the digitization of ancient as well as current publications of Mathematics all over the world, to care about the long term preservation of the content in readable form and provide convenient access to distributed digitized materials for users all over the world (See http://www. emani.org).