TY  - JOUR
AU  - Coleman, A. J.
TI  - Density Matrices of n-Fermion Systems
JO  - Canadian mathematical bulletin
PY  - 1961
SP  - 209
EP  - 212
VL  - 4
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1961-023-7/
DO  - 10.4153/CMB-1961-023-7
ID  - 10_4153_CMB_1961_023_7
ER  -