Here are some references to information systems.

English-language information system journals:

• ACM Computing Surveys
• ACM Transactions on Database Systems
• ACM Transactions on Information Systems
• Communications of the ACM (CACM)
• Communications of the Association for Information System (CAIS)
• DATA BASE for Advances in Information Systems, ACM
• Decision Sciences Journal, Decision Sciences Institute
• European Journal of Information Systems, Palgrave Macmillan Ltd.
• IEEE Transactions on Software Engineering
• Information and Management, Elsevier Science
• Information Science, Elsevier Science
• Information Systems Journal, Blackwell Science
• Information Systems Research (ISR), INFORMS
• Information Systems, Elsevier Science
• International Journal of Computational Intelligence Research (IJCIR)
• International Journal of Electronic Commerce (IJEC)
• Journal of Strategic Information Systems, Elsevier Science
• Journal of Computer-Mediated Communication
• Journal of Information Technology, Palgrave Macmillan Ltd.
• Journal of MIS (JMIS)
• MIS Quarterly (MISQ)

German-language information system journals:

• HMD - Praxis der Wirtschaftsinformatik, dpunkt.verlag
• IM Fachzeitschrift für Informationsmanagement & Consulting, imc GmbH
• Informatik - Forschung und Entwicklung, Springer-Verlag
• Informatik - Spektrum, Springer-Verlag
• Wirtschaftsinformatik, Vieweg Verlag

English-language business journals:

• Academy of Management Journal
• Academy of Management Review
• California Management Review
• Harvard Business Review (HBR)
• Management Science, INFORMS
• Journal of Global Information Management, Idea Group
• Journal of Management, Elsevier
• Journal of Marketing Research
• Omega, Elsevier
• Organization Science
• Sloan Management Review
• Strategic Management Journal

German-language business journals:

• Die Betriebswirtschaft (DBW), Schäffer-Pöschel-Verlag
• Betriebswirtschaftliche Forschung und Praxis (BfuP) , NWB-Verlag
• Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung (ZfbF)
• Zeitschrift für Betriebswirtschaft (ZfB), Gabler Verlag

Libraries:

• Universitätsbibliothek Mainz
• Deutsche Zentralbibliothek für Wirtschaftswissenschaften
• Karlsruher Virtueller Katalog
• Library of Congress

Bibliographical information:

• Karlsruher Virtueller Katalog
• Elsevier Science
• Bibliotheksverbund Bayern OPAC (subito)
• Computing Research Repository (CoRR)
• The Collection of Computer Science Bibliographies
• DBLP Bibliography (Journals and Conferences)
• HBP Bibliographies
• ABI/Inform
• CiteSeer - Scientific Literature Digital Library
• The Collection of Computer Science Bibliographies (liefert citations im BibTex-Format!!)
• ComputerScienceWeb
• AISeL, repository for AIS-related journals like (MISQ and journal of the AIS) and AIS conference proceedings (like WI, ICIS, AMCIS or ECIS)

Tense considerations for science writing:

• Using tenses in scientific writing, University of Melbourne