TY  - BOOK
AU  - Bishop, R. A
AU  - Bloch, B.
TI  - Physics letters A
AV  - QC 1  .P59 1989 V.-
PY  - 1990///
CY  - Amsterdam.
PB  -  Elsevier science publishers. 
KW  - Physics
N1  - Includes bibliographical references
ER  -