Do you have the DOI (direct object identifier) for the resource (article, book chapter, or book) and need to locate it online? Resolve the DOI name at https://www.doi.org/ and it will take you directly to the the current URL.
These are a list of databases that you can use to conduct your research. However, ZSR Library has over 400 databases that you can access at https://zsr.wfu.edu/databases/. Think about the field your engineering system falls in and research subject specific databases for that field.