@article{05695228, title = {Some properties and regions of variability of affine harmonic mappings and affine biharmonic mappings.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2009}, year = {2009}, doi = {10.1155/2009/834215}, zbl = {1187.30012}, language = {en}, url = {http://dml.mathdoc.fr/item/05695228} }
Chen, Sh.; Ponnusamy, S.; Wang, X. Some properties and regions of variability of affine harmonic mappings and affine biharmonic mappings.. International Journal of Mathematics and Mathematical Sciences, Tome 2009 (2009) . doi : 10.1155/2009/834215. http://gdmltest.u-ga.fr/item/05695228/