@article{MAN_1975__217_162772,
     author = {J.C. Hemperly},
     title = {Cusp {Forms} and the {Index} {Theorem} for {Manif} olds with {Boundary.}},
     journal = {Mathematische Annalen},
     pages = {221--228},
     publisher = {mathdoc},
     volume = {217},
     year = {1975},
     zbl = {0295.58013},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__217_162772/}
}