@article{SM_2003_194_7_a5,
     author = {G. Yu. Kokarev},
     title = {The property of compactness of the~quasi-linearly perturbed
},
     journal = {Sbornik. Mathematics},
     pages = {1055--1068},
     publisher = {mathdoc},
     volume = {194},
     number = {7},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2003_194_7_a5/}
}