@article{ZNSL_2005_321_a3,
     author = {N. L. Gordeev},
     title = {Products of conjugacy classes in perfect linear groups.
},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {67--89},
     publisher = {mathdoc},
     volume = {321},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2005_321_a3/}
}