Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{KVANT_2007_6_a22, title = {{\CYRO}{\cyrb} {\cyro}{\cyrd}{\cyrn}{\cyro}{\cyrm} {\cyrs}{\cyrl}{\cyru}{\cyrch}{\cyra}{\cyre} {\cyrr}{\cyra}{\cyrs}{\cyrp}{\cyro}{\cyrl}{\cyro}{\cyrzh}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrs}{\cyrf}{\cyre}{\cyrr}{\cyrery} {\cyri} {\cyrp}{\cyri}{\cyrr}{\cyra}{\cyrm}{\cyri}{\cyrd}{\cyrery}}, journal = {Kvant}, pages = {58}, publisher = {mathdoc}, number = {6}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KVANT_2007_6_a22/} }
Об одном случае расположения сферы и пирамиды. Kvant, no. 6 (2007). http://geodesic.mathdoc.fr/item/KVANT_2007_6_a22/