@article{IM2_1991_37_2_a9,
     author = {S. P. Strunkov},
     title = {On the spectrum of sums of generators in a finite group},
     journal = {Izvestiya. Mathematics },
     pages = {461--463},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1991_37_2_a9/}
}