Source Publication (e.g., journal title)
Timeliness of online and CD-ROM databases depends on both the frequency of updates and the currency of information being added in each update. Comparisons of two CD-ROM indexes - LISA and Library Lit - and of 12 online databases are offered.
Tenopir, Carol, "How Up-To-Date is That Update?" (1991). School of Information Sciences -- Faculty Publications and Other Works.