@article{CRMECA_2004__332_12_1013_0,
     author = {Claude Vall\'ee and Jean-Marie Souriau and G\'ery de Saxc\'e and Danielle Fortun\'e},
     title = {Variance of the virtual displacement},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {1013--1018},
     publisher = {Elsevier},
     volume = {332},
     number = {12},
     year = {2004},
     doi = {10.1016/j.crme.2004.09.009},
     language = {en},
}