@article{10_4064_ap_23_3_201_214,
     author = {R. Krasnod\k{e}bski},
     title = {On osculating spheres to rectifiable curves},
     journal = {Annales Polonici Mathematici},
     pages = {201--214},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1970},
     doi = {10.4064/ap-23-3-201-214},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-23-3-201-214/}
}