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Journals and papers?

This is perhaps a bit of a newbie question, but since I'm only just now getting interested in reading academic papers and such relating to programming languages, I was wondering how I find them. Frequently I see claims such as "XYZ is well discussed in the literature" but I'm not actually sure how to go about finding this literature. Are there online sources where new papers are frequently listed for, say, programming language or other CS topics?