@article{MAN_1890__36_157502,
     author = {Burkhardt},
     title = {Untersuchungen aus dem {Gebiete} der hyperelliptischen {Modulfunctionen.} {Erster} {Theil}},
     journal = {Mathematische Annalen},
     pages = {371--434},
     publisher = {mathdoc},
     volume = {36},
     year = {1890},
     zbl = {22.0488.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1890__36_157502/}
}