Description d'une faune frasnienne inférieure du bord nord du Bassin de Namur.
1912. Bull. Soc. Belge Géol. Paléont. & Hydro. XXVI-1 Mém.; pp. 1-47, 6 plts. h.t. with most lammellibraches, but also brachiopods and trilobites. Orig. wrps. in complete issue, uncut, very good.
Het paleomilieu rond het romeins zoutwinningssite van Leffinge.
Geol. Dienst België Prof. Paper Nr. 186; 33 pp. one-sided, plus 13 pp. with figs, incl. fold-outs. Orig. wrps. with minor traces of use only, contents very good, 4to.
Het paleomilieu rond het romeins zoutwinningssite van Leffinge.
Geol. Dienst België Prof. Paper Nr. 186; 33 pp. one-sided, plus 13 pp. with figs, incl. fold-outs. Orig. wrps. with minor traces of use only, contents very good, 4to.
Seismic stratigraphy of the Mesozoic and Cenozoic in northern Belgium: main results of a high-resolution reflection seismic survey along rivers and canals.
1999. Geologie en Mijnbouw 78-1; pp. 17-37, 14 fig. Orig. extract, stapled.