TY - JOUR AU - TI - The Depth and Breadth of Google Scholar: An Empirical Study JF - portal Libraries and the Academy DO - 10.1353/pla.2006.0026 DA - 2006-04-01 UR - https://www.deepdyve.com/lp/unpaywall/the-depth-and-breadth-of-google-scholar-an-empirical-study-Q41bZkL8Ye DP - DeepDyve ER -