%0 Journal Article %T Uniformisations partielles et crit¨¨res ¨¤ la Hurewicz dans le plan %A Dominique Lecomte %J Mathematics %D 2007 %I arXiv %X We give characterizations of the Borel sets potentially in some Wadge class, among the Borel sets with countable vertical sections of a product of two Polish spaces. To do this, we use some partial uniformization results. %U http://arxiv.org/abs/0710.0131v1