Ilkka Vilonen
- (1999): New life by post-tensioning. rehabilitation of two box girder bridges. Presented at: IABSE Symposium: Structures for the Future - The Search for Quality, Rio de Janeiro, Brazil, 25-27 August 1999.
- (2013): Testing of Full Scale Pre-Stressed Concrete Beams. Presented at: IABSE Workshop: Safety, Failures and Robustness of Large Structures, Helsinki, Finland, 14-15 February 2013.
- (2011): Strengthening of pre-stressed I-roof-beams with external post-tension. Presented at: 35th Annual Symposium of IABSE / 52nd Annual Symposium of IASS / 6th International Conference on Space Structures: Taller, Longer, Lighter - Meeting growing demand with limited resources, London, United Kingdom, September 2011.
- (2007): Reconstruction of Lahti station area, demands of the new fast speed railroad between Helsinki and Lahti. Presented at: IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007.
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