@article{JDM_1899__7_144625,
     author = {A. Sommerfeld},
     title = {\"Uber das {Problem} der elektrodynamischen {Drahtwellen.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {112--113},
     publisher = {mathdoc},
     volume = {7},
     year = {1899},
     zbl = {30.0788.01},
     url = {http://geodesic.mathdoc.fr/item/JDM_1899__7_144625/}
}