Luxembourg

Leanne Logan, Geert Cole (2001): Lonely Planet Belgium and Luxembourg, Paperback: 352 pages, Lonely Planet; (April 2001), ISBN: 1864502452
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Rough Guides, Martin Dunford, Phil Lee (2002): The Rough Guide to Belgium & Luxembourg, Paperback: 416 pages, Rough Guides; 3rd edition (December 2002), ISBN: 1858288711.
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(1978): Underground transport in coal mines : information symposium, Luxembourg, May 24 to 26, 1978, Colliery Guardian; (1978)
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Larry Thomas (2002): Coal Geology, Hardcover: 396 pages, John Wiley & Sons; (October 18, 2002), ISBN: 0471485314.
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