Björn Egert Steffen Neumann Alexander Hinneburg Fast Approximate Duplicate Detection for 2D-NMR Spectra. 139-155 2007 conf/dils/2007 DILS http://dx.doi.org/10.1007/978-3-540-73255-6_13 db/conf/dils/dils2007.html#EgertNH07