TY  - JOUR
AU  - Felzenszwalb, Bernardo
AU  - Giambruno, Antonino
TI  - Periodic and Nil Polynomials in Rings
JO  - Canadian mathematical bulletin
PY  - 1980
SP  - 473
EP  - 476
VL  - 23
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1980-072-5/
DO  - 10.4153/CMB-1980-072-5
ID  - 10_4153_CMB_1980_072_5
ER  -