@article{ELMA_1987__42_4_141399,
     author = {V. Mascioni},
     title = {Zur {Absch\"atzung} des {Brocardschen} {Winkels,} {II.}},
     journal = {Elemente der Mathematik},
     pages = {35--42},
     publisher = {mathdoc},
     volume = {42},
     number = {4},
     year = {1987},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1987__42_4_141399/}
}