WITTKE Walter について
WBI Professor Dr.-Ing. W. Wittke Consulting Engineers for Foundation Engineering and Construction in Rock ... について
WITTKE Martin について
WBI Professor Dr.-Ing. W. Wittke Consulting Engineers for Foundation Engineering and Construction in Rock ... について
KIEHL Johannes R. について
WBI Professor Dr.-Ing. W. Wittke Consulting Engineers for Foundation Engineering and Construction in Rock ... について
Geotechnical and Geological Engineering について