@article{1255631819, author = {Szeg\"o, Gabor}, title = {On positive harmonic polynomials}, journal = {Illinois J. Math.}, volume = {6}, number = {1}, year = {1962}, pages = { 181-186}, language = {en}, url = {http://dml.mathdoc.fr/item/1255631819} }
Szegö, Gabor. On positive harmonic polynomials. Illinois J. Math., Tome 6 (1962) no. 1, pp. 181-186. http://gdmltest.u-ga.fr/item/1255631819/