Structural and Electrical Characterization of LaSrAl1−xMgxO4−δ Layered Perovskites Obtained by Mechanical Synthesis / publicaciones / Por Carlos Mariño, Daniel Serafini, Juan Basbus, José Antonio Alonso and Loreto Troncoso Structural and Electrical Characterization of LaSrAl1−xMgxO4−δ Layered Perovskites Obtained by Mechanical Synthesis