Preprints
- Explicit Quaternionic Contact Structures and Metrics with Special Holonomy,
(with Luis C. de Andres, Marisa Fernandez, Jose A. Santisteban,
Luis Ugarte and Dimiter Vassilev),
arXiv:0903.1398.
- Quaternionic contact manifolds with a closed fundamental 4-form,
(with Dimiter Vassilev),
arXiv:0810.3888,.
- Compact supersymmetric solutions of the heterotic equations of motion
in dimensions 7 and 8, (with Marisa Ferna'ndez, Luis Ugarte and Raquel Villacampa),
arXiv:0806.4356.
- Quaternionic contact Einstein structures and
quaternionic contact Yamabe problem,
(with I. Minchev and D. Vassilev),
math.DG/0611658,
ICTP Preprint: IC/2006/117.
- Twistors of Almost Quaternionic Manifolds, (with I. Minchev and S. Zamkovoy),
math.DG/0511525.
- Complex product structures on some simple Lie groups, (with V. Tsanov),
math.DG/0405584.