It starts in June 1996. AND and OR are supported.
Users can input new data through digitization, CD-ROM, floppy disk, or tape drive.
We have transferred every user from the old list to the new list. In the future will be upgrading the list with several new features including a web-based searchable archive. Traffic on these lists varies, but the users list handles anywhere from 5-25 messages per day on average. This search engine is powered by glimpse . I would like to thank GFZ's Section 1.2 for hosting this archive.