J.M. Graulich, V. Leclercq, and L. Hance (1989)
Le sondage d'Havelange; principales données et aspects techniques
Geological Survey of Belgium, vol. 1989-26.
65 p.
Document Actions
J.M. Graulich, V. Leclercq, and L. Hance (1989)
Geological Survey of Belgium, vol. 1989-26.
Document Actions
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