@article{10_4064_sm_96_3_195_202,
     author = {Wies{\l}aw Cupa{\l}a},
     title = {On the essential spectrum and eigenvalue asymptotics of certain {Schr\"odinger} operators},
     journal = {Studia Mathematica},
     pages = {195--202},
     publisher = {mathdoc},
     volume = {96},
     number = {3},
     year = {1990},
     doi = {10.4064/sm-96-3-195-202},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-96-3-195-202/}
}