TY - CONF A1 - Ferrein, Alexander A1 - Scholl, Ingrid A1 - Neumann, Tobias A1 - Krückel, Kai A1 - Schiffer, Stefan T1 - A system for continuous underground site mapping and exploration Y1 - 2019 UR - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/8930 ER -