@article{CRMATH_2018__356_5_532_0,
     author = {Jeffrey S. Case and Sean N. Curry and Vladimir S. Matveev},
     title = {On the {Lichnerowicz} conjecture for {CR} manifolds with mixed signature},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {532--537},
     publisher = {Elsevier},
     volume = {356},
     number = {5},
     year = {2018},
     doi = {10.1016/j.crma.2018.03.012},
     language = {en},
}