@article{MZ_1943__49_169031,
     author = {H. Hornich},
     title = {\"Uber gewisse trigonometrische {Integrale} {II}},
     journal = {Mathematische Zeitschrift},
     pages = {374--379},
     year = {1943},
     volume = {49},
     zbl = {0060.19407},
     url = {http://geodesic.mathdoc.fr/item/MZ_1943__49_169031/}
}