@article{MZM_1989_46_3_a10,
     author = {O. G. Kharlampovich},
     title = {Finitely presented solvable groups and {Lie} algebras with unsolvable equality problem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {80--92},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_3_a10/}
}