EN
If $E = {e_{i}}$ and $F = {f_{i}}$ are two 1-unconditional basic sequences in L₁ with E r-concave and F p-convex, for some 1 ≤ r < p ≤ 2, then the space of matrices ${a_{i,j}}$ with norm $||{a_{i,j}}||_{E(F)} = ||∑_{k}||∑_{l} a_{k,l}f_{l}||e_{k}||$ embeds into L₁. This generalizes a recent result of Prochno and Schütt.