Yernaux, MI., Battochio, C., Verlinden, P., & Vandewiele, F. (1984). A One-dimensional Model for the Quantum Efficiency of Front-surface-field Solar-cells. Solar Cells, 13(1), 83-97. https://doi.org/10.1016/0379-6787(84)90095-4 (Original work published 1984)