@misc{MZ_1924__21_167816,
     title = {Fock, {V.} {\"Uber} eine {Klasse} von {Integralgleichungen}},
     journal = {Mathematische Zeitschrift},
     pages = {161--173},
     publisher = {mathdoc},
     volume = {21},
     year = {1924},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/MZ_1924__21_167816/}
}