However, InfoTrac databases were published in coordination with various microfilm products from IAC which came on sequentially numbered auto-loading cartridges, on which individual frames were also individually numbered.[1] Most InfoTrac abstracts and full-text articles from the 1980s and 1990s have a location code at the end of the article which points to the exact frame on a microfilm cartridge where the story begins, which a library user could use to obtain a copy of the article as originally published.[1]