@Article{ BarIva17, author = { Barilari, Davide and Ivanov, Stefan }, title = { A Bonnet-Myers type theorem for quaternionic contact structures }, journal = { Calc. Var. PDE }, year = { 2019 }, doi = { https://doi.org/10.1007/s00526-018-1467-y }, volume = { 58 }, number = { 37 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3361/ }, note = { cvgmt preprint} }