%0 Journal Article %T Villarceau circles inversion %A Rustamyan, V.V. %A Efremov, A.V. %K geometric transformations, inversion transformation, Dupin's cyclide, torus, Villarceau circles, descriptive geometry %J Journal of Natural Sciences Research %D 2024 %N 9 %P 6 %I INFRA-M Academic Publishing LLC.