TY  - JOUR
AU  - Ponzo, Peter J.
TI  - Periodic Solutions For ẋ = Ax + G(x, t) + ∊p(t)
JO  - Canadian mathematical bulletin
PY  - 1971
SP  - 575
EP  - 577
VL  - 14
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-105-4/
DO  - 10.4153/CMB-1971-105-4
ID  - 10_4153_CMB_1971_105_4
ER  -