On coherent Hopf 2-algebras.; 2020. Available from: https://arxiv.org/abs/2005.11207
. On the gauge group of Galois objects.; 2020. Available from: https://arxiv.org/abs/2002.06097
. Twisted Ehresmann Schauenburg bialgebroids.; 2020. Available from: https://arxiv.org/abs/2009.02764
. Principal fibrations over noncommutative spheres. Reviews in Mathematical Physics [Internet]. 2018 ;30:1850020. Available from: https://arxiv.org/abs/1804.07032
.