We recommend that you start your research with library databases for several reasons:
1) They are consistent in describing publications; you don't have to worry about finding a citation that's missing a volume or page number.
2) They are clear about what they do - you know the time period covered, the journal titles included, etc.
3) Contrary to what a lot of people seem to think, there is a lot of information that isn't on the open web. And some of that information IS in our subscription databases.
These indexes and databases help you identify journal articles and other publications.