TY  - BOOK
AU  - Fieck, Gerhard.
TI  - Lecture notes in physics 167:Symmetry of polycentric systems:The polycentric tensor algebra for molecules / 
SN  - 3-540-11589-7
U1  - B20k463 
CY  - Berlin : 
PB  - Springer-Verlag.
KW  - polycentric Systems
ER  -