@article{DAN_1969_187_4_a0,
     author = {M. M. Vainberg and I. M. Lavrent'ev},
     title = {Equations with monotone and potential operators in {Banach} spaces},
     journal = {Doklady Akademii Nauk},
     pages = {711--714},
     publisher = {mathdoc},
     volume = {187},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_4_a0/}
}