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- Informatik-Spektrum 34(5):484--495 (October 2011)
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- Informatik-Spektrum 34(3):255-264 (June 2011)
- Automated Software Engineering 18(2):163-197 (June 2011)
- Personal and Ubiquitous Computing 15(4):377-387 (April 2011)
- Automated Software Engineering 18(2):199-224 (June 2011)
- Personal and Ubiquitous Computing 15(3):221-233 (March 2011)
- Informatik-Spektrum 34(4):364-376 (August 2011)
- Informatik-Spektrum 34(3):265-275 (June 2011)
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- Informatik-Spektrum 34(4):377-390 (August 2011)
- IEEE Software 28(1):77-86 (2011)
- Informatik-Spektrum 34(1):1-5 (2011)


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