@article{PMF_1932_39_1_a1,
     author = {Rybka, E.},
     title = {Photographic observations of the light-variation of {Eros,} made on 12-13 {January} 1931},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {11--14},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {1932},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PMF_1932_39_1_a1/}
}