TY  - JOUR
AU  - V. Mileikovskyi 
TI  - A Task About Spheres and Cones, Applicable in Jet Theory
JO  - Journal for geometry and graphics
PY  - 2019
SP  - 99
EP  - 114
VL  - 23
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2019_23_1_JGG_2019_23_1_a8/
ID  - JGG_2019_23_1_JGG_2019_23_1_a8
ER  -