@article{NUMA_1983__41_132849,
     author = {E. Wagenf\"uhrer},
     title = {On {Calculating} the {Eigenvalues} of the {Finite} {Hill's} {Differential} {Equation}},
     journal = {Numerische Mathematik},
     pages = {255--280},
     publisher = {mathdoc},
     volume = {41},
     year = {1983},
     zbl = {0535.65061},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1983__41_132849/}
}