@Book{025489356, author="Hanna, Thomas H.", title="Field instrumentation in geotechnical engineering", series="Series on rock and soil mechanics 10", year="1985", edition="1. ed.", publisher="Trans Tech Publications", address="Clausthal-Zellerfeld", keywords="Ingenieurgeologie; Geotechnisches Instrument", note="Thomas H. Hanna", note="Literaturverz. S. 761 - 829", isbn="087849054X", language="English" }