TY  - JOUR
AU  - Mehrenberger, Michel
AU  - Loreti, Paola
TI  - An Ingham type proof for a two-grid observability theorem
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2008
SP  - 604
EP  - 631
VL  - 14
IS  - 3
PB  - EDP-Sciences
UR  - http://www.numdam.org/articles/10.1051/cocv:2007062/
DO  - 10.1051/cocv:2007062
LA  - en
ID  - COCV_2008__14_3_604_0
ER  -