Zentralblatt MATH is a database containing over 3 million entries of mathematics literature from 1868 to present. It is the most complete abstracting and reviewing service for pure and applied mathematics, drawing from over 3,500 journals and 1,100 serials. Reviews are written by over 10,000 experts worldwide, with over 100,000 new items added annually. The database provides librarians, researchers, and scientists with continual access to valuable mathematics research.