Johan Bauwelinck Wei Chen Dieter Verhulst Yves Martens Peter Ossieur Xing-Zhi Qiu Jan Vandewege Low-output-impedance BiCMOS voltage buffer. 34-38 2004 1 IEICE Electronic Express 2 http://joi.jlc.jst.go.jp/JST.JSTAGE/elex/1.34 db/journals/ieiceee/ieiceee1.html#BauwelinckCVMOQV04