%0 Journal Article %A Pierre Le Boudec %T Manin's conjecture for two quartic del Pezzo surfaces with $3 \mathbf{A}_1$ and $\mathbf{A}_1 + \mathbf{A}_2$ singularity types %J Acta Arithmetica %D 2012 %P 109-163 %V 151 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa151-2-1/ %R 10.4064/aa151-2-1 %G en %F 10_4064_aa151_2_1