@article{MAN_1921__84_158894,
     author = {E. Bessel-Hagen},
     title = {\"Uber die {Erhaltungss\"atze} der {Elektrodynamik}},
     journal = {Mathematische Annalen},
     pages = {258--276},
     publisher = {mathdoc},
     volume = {84},
     year = {1921},
     zbl = {48.0877.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1921__84_158894/}
}