TY  - JOUR
AU  - Tuyen, Luong Quoc
TI  - On an affirmative answer to Y.  Tanaka's and Y. Ge's problem
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 2017
SP  - 125
EP  - 129
VL  - 58
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.175/
DO  - 10.14712/1213-7243.2015.175
LA  - en
ID  - 10_14712_1213_7243_2015_175
ER  -