@article{MVK_2013_4_a5,
     author = {S. S. Martynov},
     title = {NP-completeness of special string editing problems},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {77--93},
     publisher = {mathdoc},
     volume = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2013_4_a5/}
}