TY  - BOOK
AU  - Acarnley, Paul
TI  - Stepping motors: a guide to theory and practice 
SN  - 0852960298
PY  - 2002///
CY  - London
PB  -  The Institution of Electrical Engineers
KW  - Stepping motors
N1  - Includes bibliographical references (p. [151]-156] and index
ER  -