1. General theory of sequence control;Hasegawa;Meas. & Contr.,1988
2. Recent trend of programmable controller (PC);Sekiguchi;Meas. & Contr.,1988
3. Industrial education for sequence control;Ohno;Meas. & Contr.,1988
4. Application of microcomputer to sequence controller;Kubota;Meas. & Contr.,1979