Cell Press is a leading academic publisher in the field of life sciences, affiliated with Elsevier Group.
Superstar Group, established in 1993, is the world's largest provider of Chinese digital book resources.
The IOP ebooks™ collection brings together innovative digital publishing with leading authors from across the physical sciences.
IOP Publishing, a wholly owned subsidiary of the Institute of Physics, is dedicated to advancing physics research, application, and education.
The Nature Portfolio is a collection of interdisciplinary research and review journals dedicated to understanding, exploring, and sharing science since 1869.
The Oxford English Dictionary Online offers users the most complete, up-to-date, and extensive dictionary from Oxford.
PNAS: Proceedings of the National Academy of Sciences of the United States of America(P-ISSN 0027-8424; E-ISSN 1091-6490)《The Proceedings of the National Academy of Sciences was founded in 1914 and
Science has been at the center of important scientific discovery since its founding in 1880—with seed money from Thomas Alva Edison.
Scopus is the world's largest abstract and citation database of peer-reviewed literature, operated by Elsevier.