@article{DE_1991_27_4_a13,
     author = {P. P. Zabreiko and Kh. T. Nguyen},
     title = {New theorems on the solvability of {Hammerstein} operator and integral equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {672--682},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_4_a13/}
}