@article{AA_2018_30_3_a6,
     author = {V. Kozlov and N. G. Kuznetsov},
     title = {A comparison theorem for super- and subsolutions of $\nabla^2u+f(u)=0$ and its application to water waves with vorticity},
     journal = {Algebra i analiz},
     pages = {112--128},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2018_30_3_a6/}
}