@article{MZ_1996__221_1_174857,
     author = {P. Monsky},
     title = {Generalizing the {Birch-Stephens} theorem. {I.} {Modular} curves.},
     journal = {Mathematische Zeitschrift},
     pages = {415--420},
     publisher = {mathdoc},
     volume = {221},
     number = {1},
     year = {1996},
     zbl = {0853.11048},
     url = {http://geodesic.mathdoc.fr/item/MZ_1996__221_1_174857/}
}