@article{MZ_1931__33_168290,
     author = {S., Mukhopadhaya},
     title = {Extended {Minimum-Number} {Theorems} of {Cyclic} and {Sextactic} {Points} on a {Plane} {Convex} {Oval}},
     journal = {Mathematische Zeitschrift},
     pages = {648--662},
     publisher = {mathdoc},
     volume = {33},
     year = {1931},
     zbl = {0002.04904},
     url = {http://geodesic.mathdoc.fr/item/MZ_1931__33_168290/}
}