@article{RM_1997_52_2_a7,
     author = {V. A. Malyshev},
     title = {Interacting strings of symbols},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {299--326},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1997_52_2_a7/}
}