@article{10_4064_cm131_1_9, author = {Ushangi Goginava}, title = {Convergence of logarithmic means of quadratic partial sums of double {Fourier} series}, journal = {Colloquium Mathematicum}, pages = {99--112}, publisher = {mathdoc}, volume = {131}, number = {1}, year = {2013}, doi = {10.4064/cm131-1-9}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm131-1-9/} }