@article{10_4064_ap_24_3_261_267,
     author = {W. Waliszewski},
     title = {On geometric objects},
     journal = {Annales Polonici Mathematici},
     pages = {261--267},
     publisher = {mathdoc},
     volume = {24},
     number = {3},
     year = {1970},
     doi = {10.4064/ap-24-3-261-267},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-24-3-261-267/}
}