Most schools give their students access to databases like this...
If you want to pay some money, you can get access to really any university database. You can find academic articles on really anything out there.
Google Scholar also has a bunch of academic articles, but I haven't really used it much so I can't vouch for its quality. It's free though!
Be careful. There are some that are scams, and you have to be able to assess the credibility of some articles based on who they are written by. I saw one in which a "scientist" claimed he found a piece from a meteorite broken in the river, but he never went into detail about where it was, how it was lying, or how he handled it when he found it (he should have emplemented a sanitary way of collecting it). He didn't even send it to an expert for analysis!
Just letting you know that there are shams. I'm sure what you have access to is legitimate though.