@article{10_4153_CMB_1972_091_7,
     author = {Gupta, Narain},
     title = {Third-Engel {2-Groups} are {Soluble}},
     journal = {Canadian mathematical bulletin},
     pages = {523--524},
     year = {1972},
     volume = {15},
     number = {4},
     doi = {10.4153/CMB-1972-091-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-091-7/}
}