TY  - JOUR
AU  - Freitas, Pedro
AU  - Siudeja, Batłomiej
TI  - Bounds for the first Dirichlet eigenvalue of triangles and quadrilaterals
JO  - ESAIM: Control, Optimisation and Calculus of Variations
PY  - 2010
SP  - 648
EP  - 676
VL  - 16
IS  - 3
PB  - EDP-Sciences
UR  - http://www.numdam.org/articles/10.1051/cocv/2009018/
DO  - 10.1051/cocv/2009018
LA  - en
ID  - COCV_2010__16_3_648_0
ER  -