@article{SJC_2007_1_2_a1,
     author = {V. A., Ustimenko},
     title = {On {Graph-Based} {Cryptography} and {Symbolic} {Computations}},
     journal = {Serdica Journal of Computing},
     pages = {131--156},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SJC_2007_1_2_a1/}
}