@article{article, title  = {{Fermi-energy edge singularity and excitonic enhancement associated with the second subband in asymmetric modulation-doped quantum wells}},

 publisher = {{American Physical Society (APS)}},

 url = {{}},

 year = {{1993}},

 month = {{11}},

 author = {{Fisher TA and Simmonds PE and Skolnick MS and Martin AD and Smith RS}},

 doi = {{10.1103/physrevb.48.14253}},

 volume = {{48}},

 journal = {{Physical Review B}},

 issue = {{19}},

 pages = {{14253-14263}},

 note = {{Accessed on 2025/04/22}}}