@article{JRAM_1943__185_150123,
     author = {G. Haenzel and F. Reutter},
     title = {Die {Geometrie} der linearen {Strahlenkongruenz.} {IV.} {\"Uber} algebraische {Regelfl\"achen} vom {Grade} 2n mit zwei n-fachen {Leitgeraden} (n = 3, 4, 5, 6).},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {78},
     publisher = {mathdoc},
     volume = {185},
     year = {1943},
     zbl = {0028.41504},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/JRAM_1943__185_150123/}
}