TY  - JOUR
AU  - Luong Quoc Tuyen
TI  - A partial answer to a question of Y. Ikeda, C. Liu and Y. Tanaka
JO  - Novi Sad Journal of Mathematics
PY  - 2017
SP  - 63 
EP  -  68
VL  - 47
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.04217/
DO  - 10.30755/NSJOM.04217
ID  - 10.30755/NSJOM.04217
ER  -