Über Bodenverformungen bei stark gestörtem und mächtigem, wasserführendem Deckgebirge im Aachener Steinkohlengebiet: aus dem Institut für Markscheidewesen, Bergschadenskunde und Geophysik im Bergbau an der Rhein.-Westf. Technischen Hochschule Aachen

148 Pages · 1955 · 20.06 MB · German
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“ Knock, And He'll open the door. Vanish, And He'll make you shine like the sun. Fall, And He'll raise you to the heavens. Become nothing, And He'll turn you into everything. ” ― Rumi
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