Power Rating Based on Two Different Spectroheliometers with Lattice-Matched (LM) and Upright Metamorphic (UMM) Component Solar Cells - Emilio Agudo; HERRERO MARTIN, REBECA; DOMINGUEZ DOMINGUEZ, CESAR; SALA PANO, Gabriel; NUÑEZ JUDEZ, RUBEN; Antón Hernández, Ignacio (Aip Conference Proceedings, 2016)