In April 2007, aboard Soyuz TMA-10, he became the fifth space tourist and the second Hungarian in space. In March 2009, aboard Soyuz TMA-14, he made a second trip to the International Space Station.
↑Aitken, W.; Dickens, B.; Kwiatkowski, P.; De Moor, O.; Richter, D.; Simonyi, C. (1998). "Transformation in intentional programming". Proceedings. Fifth International Conference on Software Reuse (Cat. No.98TB100203). pp. 114–123. doi:10.1109/ICSR.1998.685736. ISBN0-8186-8377-5. S2CID11388901.
↑Simonyi, C.; Christerson, M.; Clifford, S. (2006). "Intentional software". Proceedings of the 21st annual ACM SIGPLAN conference on Object-oriented programming systems, languages, and applications - OOPSLA '06. p. 451. doi:10.1145/1167473.1167511. ISBN1595933484. S2CID10334945.