Voir la notice de l'article dans Czech Digital Mathematics Library
@article{CMJ_2006__56_3_a13, author = {Ercan, Z. and Onal, S.}, title = {An answer to a question of {Cao,} {Reilly} and {Xiong}}, journal = {Czechoslovak Mathematical Journal}, pages = {957--959}, publisher = {mathdoc}, volume = {56}, number = {3}, year = {2006}, mrnumber = {2261667}, zbl = {1164.46311}, language = {en}, url = {https://geodesic-test.mathdoc.fr/item/CMJ_2006__56_3_a13/} }
Ercan, Z.; Onal, S. An answer to a question of Cao, Reilly and Xiong. Czechoslovak Mathematical Journal, Tome 56 (2006) no. 3, pp. 957-959. https://geodesic-test.mathdoc.fr/item/CMJ_2006__56_3_a13/