Bolu Tunnel
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Golser, Johann / Burger, Daniela (2001): Bolu Tunnels – Tunnelbau im nordanatolischen Erdbebengebiet. In: Felsbau, v. 19, n. 5 ( 2001), pp. 179.
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Unterberger, Wolfgang / Brandl, Johann (2000): The Effects of the Recent Earthquake in Turkey on the Bolu Tunnels. In: Felsbau, v. 18, n. 2 ( 2000), pp. 50.
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Dalgıç, Süleyman (2002): Tunneling in squeezing rock, the Bolu tunnel, Anatolian Motorway, Turkey. In: Engineering Geology, v. 67, n. 1-2 (December 2002), pp. 73-96.
https://doi.org/10.1016/s0013-7952(02)00146-1