TY - DATA AU - Jürg Nievergelt, Thomas Roos, Hans-Jörg Schek, Peter Widmayer TI - IGIS '94: Geographic Information Systems SN - 9783540491057 PY - 1994/// PB - Springer Berlin Heidelberg KW - Computer Science UR - https://doi.org/10.1007/3-540-58795-0 ER -