TY  - JOUR
AU  - Banerjee, Abhijit
AU  - Chakraborty, Bikash
TI  - Further investigations on a question of Zhang and Lü
JO  - Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
PY  - 2015
IS  - 14
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUPCM_2015_14_a3/
LA  - en
ID  - AUPCM_2015_14_a3
ER  -