@article{MZM_2007_81_3_a1,
     author = {V. V. Grushin},
     title = {Asymptotic {Behavior} of {Eigenvalues} of the {Laplace} {Operator} in {Infinite} {Cylinders} {Perturbed} by {Transverse} {Extensions}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {328--334},
     publisher = {mathdoc},
     volume = {81},
     number = {3},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2007_81_3_a1/}
}