To identify articles, use a database (more accurately a periodical index or serial bibliography).
SPU databases should link to SPU full-text quite automatically. Open-access databases will not, and the SPU philosophy database PhilPapers is more than usually unreliable in this respect. So use the open access databases (with the exception of Google Scholar) and if necessary PhilPapers in conjunction with the following handout:
SPU databases will link to SPU full-text quite automatically. Open-access databases will not. So use the latter (Google Scholar only excepted) in conjunction with Finding the Full Text.