Professional Databases Information Science
- ACM Portal *
- CiteSeer
- DPMA - Deutsches Patent und Markenamt
- E-LIS - E-prints in Library an Information Sciences
- Espacenet - European Patent office
- Infodata *
- io-port.net informatics online (FIZ Karlsruhe)
- LISTA
- Scopus
- USPTO - United States Patent and Trademark Office
- Web of Science *
- Wiso-net *
* With * labeled journals are only released for affiliated, users and guests of HHU Düsseldorf on campus