@misc{indiciae6968af557b53, title = {Electron states in n-type inversion layers with periodic microstructure.}, author = {U Wulf}, year = {1987}, doi = {10.1103/physrevb.35.9754}, url = {https://pubmed.ncbi.nlm.nih.gov/9941401/}, note = {Source identifier: 9941401} }