@article{SM_2018_209_10_a5,
     author = {A. M. Shelekhov},
     title = {An elementary proof of {Poncelet's} theorem on bicentric polygons},
     journal = {Sbornik. Mathematics},
     pages = {1533--1546},
     publisher = {mathdoc},
     volume = {209},
     number = {10},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2018_209_10_a5/}
}