Salīdzināt metodes

	Ulrichsweb Globālais periodikas izdevumu direktorijs	Web of Science datubāze
Nozare	Bibliometrija	Bibliometrija
Saime	Process / pipeline	Process / pipeline
Izcelsmes gads	1932	1964
Autors	Bowker (originally R.R. Bowker), now ProQuest LLC	Institute for Scientific Information (ISI), now Clarivate Analytics
Tips	Database	Database
Pirmavots	ProQuest. (2024). Ulrichsweb: Global Serials Directory. Retrieved from https://ulrichsweb.serialssolutions.com/	Clarivate Analytics. (2024). Web of Science Core Collection. Retrieved from https://clarivate.com/webofsciencegroup/solutions/web-of-science-core-collection/
Citi nosaukumi	Ulrichsweb, Ulrich's International Periodicals Directory, Ulrich's Directory	WoS, ISI Web of Science, Clarivate Analytics
Saistītās	4	5
Kopsavilkums	Ulrichsweb is a comprehensive, subscription-based global serials directory cataloging over 300,000 print and electronic journals, magazines, newspapers, and other periodical publications. Developed by ProQuest (originally R.R. Bowker), Ulrichsweb has served librarians and researchers for over 90 years as the authoritative source for journal metadata, publication information, and peer-review verification. A unique feature is Ulrichsweb's verification program: editorial staff contact journals directly to confirm peer-review claims, marking journals as 'refereed' only after validation. This verification process distinguishes legitimate peer-reviewed journals from predatory publishers falsely claiming peer review.	Web of Science (WoS) is the oldest and most established multidisciplinary citation database, maintained by Clarivate Analytics since 1964. It indexes over 21,000 peer-reviewed journals, conference proceedings, and books across sciences, social sciences, and humanities. WoS provides researchers, librarians, and administrators with comprehensive citation tracking, publication metrics, and research evaluation tools essential for literature review, impact assessment, and research strategy.