@article{01102631, title = {Tree martingales and a.e. convergence of Vilenkin-Fourier series.}, journal = {Mathematica Pannonica}, volume = {8}, year = {1997}, pages = {17-36}, zbl = {0881.42020}, language = {en}, url = {http://dml.mathdoc.fr/item/01102631} }
Schipp, F.; Weisz, F. Tree martingales and a.e. convergence of Vilenkin-Fourier series.. Mathematica Pannonica, Tome 8 (1997) pp. 17-36. http://gdmltest.u-ga.fr/item/01102631/