TY - GEN TI - Optical investigation of Fermi-edge singularities in Al0.35Ga0.65As/GaAs heterostructures SN - 0163-1829 PY - 1992/// PB - Physical review. B, Condensed matter N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/physrevb.46.4352 ER -