3.-19. June 2013 | Strait Crossings 2013 Sixth Symposium, Extreme Crossings and New Technologies Bryggen Bergen, Norway
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9.-15. Mai 2014 | WTC 2014, World Tunnel Congress Iguassu Falls, Brasilien
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11.-13. Juni 2014 | STC 2014, Swiss Tunnel Congress Luzern, Schweiz
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23.-28. Mai 2015 | WTC 2015, World Tunnel Congress Dubrovnik, Kroatien
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10.-12. Juni 2015 | STC 2015, Swiss Tunnel Congress Luzern, Schweiz
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