TY  - JOUR
AU  - Laurent Freidel
AU  - Simone Speziale
TI  - On the relations between gravity and BF theories
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2012
VL  - 8
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a31/
LA  - en
ID  - SIGMA_2012_8_a31
ER  -