@article{MOMA_1968__72_177415,
     author = {F.I. Mautner},
     title = {The {Trace} of {Hecke} {Operators.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {137--143},
     publisher = {mathdoc},
     volume = {72},
     year = {1968},
     zbl = {0176.33701},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1968__72_177415/}
}