TY  - JOUR
AU  - Stefan Ivanov
AU  - Ivan Minchev
AU  - Dimiter Vassilev
TI  - Extremals for the Sobolev inequality on the seven-dimensional quaternionic Heisenberg group and the quaternionic contact Yamabe problem
JO  - Journal of the European Mathematical Society
PY  - 2010
SP  - 1041
EP  - 1067
VL  - 12
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4171/jems/222/
DO  - 10.4171/jems/222
ID  - JEMS_2010_12_4_a6
ER  -