TY  - JOUR
AU  - Boris Khesin
AU  - Serge Tabachnikov
TI  - Fun Problems in Geometry and Beyond
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2019
VL  - 15
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2019_15_a96/
LA  - en
ID  - SIGMA_2019_15_a96
ER  -