By far the world’s most valuable and most numerous collection of active full text peer-reviewed journals, Academic Search™ Premier contains indexing for more than 8,000 publications, with full text for nearly 4,500 of those titles. PDF backfiles to 1975 or further are available for well over one hundred journals, and searchable cited references are provided for more than 1,000 titles. Academic Search Premier contains unmatched full text coverage in biology, chemistry, engineering, physics, psychology, religion & theology, etc.