@article{10_4064_aa_56_1_65_82,
     author = {Henryk Iwaniec},
     title = {Small eigenvalues of {Laplacian} for $\ensuremath{\Gamma}_{0}(N)$},
     journal = {Acta Arithmetica},
     pages = {65--82},
     publisher = {mathdoc},
     volume = {56},
     number = {1},
     year = {1990},
     doi = {10.4064/aa-56-1-65-82},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-56-1-65-82/}
}