TY - JOUR ID - boettcher2011contrastandchange T1 - Contrast and change mining A1 - Böttcher, Mirko JA - Wiley Interdisc. Rev.: Data Mining and Knowledge Discovery Y1 - 2011 VL - 1 IS - 3 SP - 215 EP - 230 M2 - doi: 10.1002/widm.27 ER -