Two-dimensional constraints for the combination of parameters Ω_m − σ₈ of the traditional analyses of Lyα+WL data (left) and of Recomb+WL (right). In both panels the empty black contours are the WL alone constraints while the filled blue ones are the Planck contours. Left panel: green contours show the Lyα constraints while the red contours show their combination with WL. Similarly, in the right panel: green contours show the Recomb constraints while the red contours show their combination with WL. The full posterior of these analyses can be seen in Figs. A.2 and A.3 respectively.