Ming Cong Jing Liu Quanpu Li A Novel Dual-Cam Linkage Drive Automatic Tool Changer for Horizontal Machining Center. 368-377 2008 ICIRA (2) http://dx.doi.org/10.1007/978-3-540-88518-4_40 conf/icira/2008-2 db/conf/icira/icira2008-2.html#CongLL08