TY  - BOOK
AU  - Pessen D
AU  -  Hubl W
TI  - Design and applications of programmable sequence controllers for automation systems
U1  - D65,8(B287):4, L9 
PY  - 1979///
CY  - London
PB  - Longman         
KW  -  Computer system reliability
KW  - Computer science
ER  -