TY - RPRT TI - Shallow quantum well excitons: 2D or 3D? AU - I Brener AU - WH Knox AU - KW Goossen AU - JE Cunningham PY - 1993 DO - 10.1103/physrevlett.70.319 UR - https://pubmed.ncbi.nlm.nih.gov/10054082/ ID - 10054082 ER -