International Standard Serial Number "ISSN-L" facilitates search, retrieval and delivery across all media versions for services like OpenURL, library catalogues, search engines or knowledge bases. International Standard Serial Number An International Standard Serial Number (ISSN) is an eight-digit serial number used to uniquely identify a serial publication. The ISSN is especially helpful in distinguishing between serials with the same title. ISSN are used in ordering, cataloging, interlibrary loans, and other practices in connection with serial literature. The ISSN system was first drafted as an International Organization for Standardization (ISO) international standard in 1971 and published as ISO 3297 in 1975. ISO subcommittee TC 46/SC
What Lies Below "steady but stagnant ratings", as they were "not much different" from the previous week. "What Lies Below" received mixed reviews from television critics. "The A.V. Club" contributor Todd VanDerWerff graded the episode with a B-, explaining that despite some nice moments, it was "an episode of the show that started out utterly predictably, continued along an utterly predictable path and yet somehow got fairly enjoyable by the end just through sheer force of will on the part of the cast." IGN's Ramsey Isler also found the episode average and predictable, as it lacked "much of the quintessential storytelling elements that,