@article{02012609,
title = {The additive approximation on a four-variate Jensen-type operator equation.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {2003},
year = {2003},
pages = {3171-3187},
doi = {10.1155/S0161171203210486},
zbl = {1064.47016},
language = {en},
url = {http://dml.mathdoc.fr/item/02012609}
}
Wang, Jian. The additive approximation on a four-variate Jensen-type operator equation.. International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 3171-3187. doi : 10.1155/S0161171203210486. http://gdmltest.u-ga.fr/item/02012609/