Access to Mathematical Reviews and current publications from the AMS.
Full text of all reviews from approximately 1600 current serials and journals from 1940 to the present. Items listed in the annual indexes of Mathematical Reviews but not given an individual review are also included. Current Mathematical Publications data is added daily. Mathematical Reviews data is added each month when the printed issue is complete.
arXiv.org is a highly-automated electronic archive and distribution server for research articles. Covered areas include physics, mathematics, computer science, nonlinear sciences, quantitative biology and statistics.