Preprints

- Formality of 7-dimensional 3-Sasakian manifolds, (with Marisa Fernandez and Vicente Munoz). arXiv:1511.08930.

- Solution of the qc Yamabe equation on a 3-Sasakian manifold and the quaternionic Heisenberg group, (with Ivan Minchev, Dimiter Vassilev). arXiv:1504.03142.

- Sasaki-like almost contact complex Riemannian manifolds, (with H. Manev and M. Manev). arXiv:1402.5426.

- Explicit Quaternionic Contact Structures and Metrics with Special Holonomy, (with L. C. de Andres, M. Fernandez, J. A. Santisteban, L. Ugarte and D. Vassilev), arXiv:0903.1398.

- 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.