TY  - JOUR
AU  - T. Q. Hung
AU  - N. T. T. Duong 
TI  - Generalizations of Fagnano's Problem
JO  - Journal for geometry and graphics
PY  - 2021
SP  - 61
EP  - 69
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2021_25_1_JGG_2021_25_1_a5/
ID  - JGG_2021_25_1_JGG_2021_25_1_a5
ER  -