@article{FAA_1992_26_4_a0,
     author = {I. M. Gel'fand and V. S. Retakh},
     title = {A theory of noncommutative determinants and characteristic functions of graphs},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {1--20},
     publisher = {mathdoc},
     volume = {26},
     number = {4},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a0/}
}