Gian Luca Marcialis Aaron Lewicke Bozhao Tan Pietro Coli Dominic Grimberg Alberto Congiu Alessandra Tidu Fabio Roli Stephanie A. C. Schuckers First International Fingerprint Liveness Detection Competition - LivDet 2009. 12-23 2009 ICIAP http://dx.doi.org/10.1007/978-3-642-04146-4_4 conf/iciap/2009 db/conf/iciap/iciap2009.html#MarcialisLTCGCTRS09