%0 Journal Article %A Silhol, R. %T Bounds for the number of connected components and the first Betti number mod two of a real algebraic surface %J Compositio Mathematica %D 1986 %P 53-63 %V 60 %N 1 %I Martinus Nijhoff Publishers %U http://www.numdam.org/item/CM_1986__60_1_53_0/ %G en %F CM_1986__60_1_53_0