%0 Journal Article %A Jeffrey S. Geronimo %A Plamen Iliev %T Fejér–Riesz factorizations and the structure of bivariate polynomials orthogonal on the bi-circle %J Journal of the European Mathematical Society %D 2014 %P 1849-1880 %V 16 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/477/ %R 10.4171/jems/477 %F JEMS_2014_16_9_a2