@article{MZ_1983__182_173291,
     author = {Narain Gupta and Said Sidki},
     title = {On the {Burnside} {Problem} for {Periodic} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {385--388},
     publisher = {mathdoc},
     volume = {182},
     year = {1983},
     zbl = {0513.20024},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__182_173291/}
}