TY  - JOUR
AU  - Liu, Hanbing
AU  - Wang, Gengsheng
TI  - Second order optimality conditions for periodic optimal control problems governed by semilinear parabolic differential equations
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2021
VL  - 27
PB  - EDP-Sciences
UR  - https://www.numdam.org/articles/10.1051/cocv/2021028/
DO  - 10.1051/cocv/2021028
LA  - en
ID  - COCV_2021__27_1_A26_0
ER  -