1. D. Angella, Cohomological aspects of non-Kähler manifolds. Ph.D. thesis, Università di Pisa, 2013. arXiv:1302.0524
2. D. Angella, A. Tomassini, On the ∂ ∂ ¯ $$\partial \overline{\partial }$$ -Lemma and Bott–Chern cohomology. Invent. Math. 192, 71–81 (2013)
3. D. Angella, G. Dloussky, A. Tomassini, On Bott–Chern cohomology of compact complex surfaces. Ann. Mat. Pura Appl. (4) 195, 199–217 (2016)
4. B. Banos, A. Swann, Potentials for hyper-Kähler metrics with torsion. Classical Quantum Gravity 21, 3127–3135 (2004)
5. M.L. Barberis, I. Dotti Miatello, Hypercomplex structures on a class of solvable Lie groups. Q. J. Math. Oxford Ser. (2) 47, 389–404 (1996)