@article{CM_1972__24_1_105_0,
     author = {Bourguignon, J. P. and Mazet, E.},
     title = {Sur la structure des vari\'et\'es riemanniennes qui admettent des champs de vecteurs parall\`eles},
     journal = {Compositio Mathematica},
     pages = {105--117},
     publisher = {Wolters-Noordhoff Publishing},
     volume = {24},
     number = {1},
     year = {1972},
     mrnumber = {307108},
     zbl = {0227.53032},
     language = {fr},
     url = {http://archive.numdam.org/item/CM_1972__24_1_105_0/}
}