مؤلف: P. P. Nelson

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1 كتب إلكترونية بواسطة P. P. Nelson

Roald Aaboe & Vidar Aarvold: Tunnelling ’94
It is now more than twenty years since a proposal was first mooted to hold an international tunnelling symposium in Britain. At the time of the first symposium, held in London in 1976, the Channel Tu …
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