@article{BAG_1971__1_138065,
     author = {O. KR\"OTENHEERDT},
     title = {Zur {L\"osung} des {Isotopieproblems} der {Bosettenknoten}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {19--32},
     publisher = {mathdoc},
     volume = {1},
     year = {1971},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/BAG_1971__1_138065/}
}