Source Publication (e.g., journal title)
Profiles Personal Librarian (PL), one of the new generation of online search software. History of PL, known originally as SIRE; What PL does; PL as the search engine for CD-ROM products; Online expansion; DIALOG buys into PLS; Why PLS is attracting attention now.
Tenopir, Carol, "Forces Shaping Electronic Access" (1993). School of Information Sciences -- Faculty Publications and Other Works.