@article{TMF_2020_204_3_a3,
     author = {G. F. Helminck and V. A. Poberezhny and S. V. Polenkova},
     title = {Extensions of the~discrete {KP} hierarchy and its strict version},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {367--382},
     year = {2020},
     volume = {204},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2020_204_3_a3/}
}