Donna Ahrens
- Chapter 10 submerged floating tunnels—a a concept whose time has arrived. Dans: Tunnelling and Underground Space Technology, v. 12, n. 2 (avril 1997). (1997):
- ITA Open session focuses on management of underground works. Dans: Tunnelling and Underground Space Technology, v. 6, n. 2 (janvier 1991). (1991):
- Technology transfer: International activities and opportunities. Dans: Tunnelling and Underground Space Technology, v. 6, n. 3 ( 1991). (1991):