Schmidt, W. G., Bechstedt, F., Fleischer, K., Cobet, C., Esser, N., Richter, W.,https://doi.org/10.1002/1521-396x(200112)188:4&#60;1401::aid-pssa1401&#62;3.0.co;2-1__Onida, G. (2002). GaAs(001): Surface Structure and Optical Properties. Physica Status Solidi (A), 188(4), 1401–1409.https://doi.org/10.1002/1521-396x(200112)188:4&#60;1401::aid-pssa1401&#62;3.0.co;2-1 
LibreCat: /record/13741
DOI: 10.1002/1521-396x(200112)188:4<1401::aid-pssa1401>3.0.co;2-1

Bechstedt, F., Schmidt, W. G., &; Hahn, P. H. (2002). Towards a Complete Many-Body Description: Optical Response of Real Surfaces. Physica Status Solidi (A), 188(4), 1383–1392.https://doi.org/10.1002/1521-396x(200112)188:4&#60;1383::aid-pssa1383&#62;3.0.co;2-g 
LibreCat: /record/13742
DOI: 10.1002/1521-396x(200112)188:4<1383::aid-pssa1383>3.0.co;2-g

Onida, G., Schmidt, W. G., Pulci, O., Palummo, M., Marini, A., Hogan, C., &; Del Sole, R. (2002). Theory for Modeling the Optical Properties of Surfaces. Physica Status Solidi (A), 188(4), 1233–1242.https://doi.org/10.1002/1521-396x(200112)188:4&#60;1233::aid-pssa1233&#62;3.0.co;2-w 
LibreCat: /record/13745
DOI: 10.1002/1521-396x(200112)188:4<1233::aid-pssa1233>3.0.co;2-w

Paget, D., Garreau, Y., Sauvage, M., Chiaradia, P., Pinchaux, R., &; Schmidt, W. G. (2002). X-ray diffraction analysis of the gallium-rich surface of GaAs(001). Physical Review B, 64, 161305(R).https://doi.org/10.1103/physrevb.64.161305 
LibreCat: /record/13749
DOI: 10.1103/physrevb.64.161305

Pulci, O., Lüdge, K., Vogt, P., Esser, N., Schmidt, W. G., Richter, W., &; Bechstedt, F. (2002). First-principles study of InP and GaP(001) surfaces. Computational Materials Science, 32–37.https://doi.org/10.1016/s0927-0256(01)00161-6 
LibreCat: /record/13750
DOI: 10.1016/s0927-0256(01)00161-6

Hingerl, K., Balderas-Navarro, R. ., Bonanni, A., Tichopadek, P., &; Schmidt, W. (2002). On the origin of resonance features in reflectance difference data of silicon. Applied Surface Science, 175–176, 769–776.https://doi.org/10.1016/s0169-4332(01)00114-3 
LibreCat: /record/13752
DOI: 10.1016/s0169-4332(01)00114-3

Schmidt, W. G., Bechstedt, F., &; Bernholc, J. (2002). Terrace and step contributions to the optical anisotropy of Si(001) surfaces. Physical Review B, 63, 045322.https://doi.org/10.1103/physrevb.63.045322 
LibreCat: /record/13754
DOI: 10.1103/physrevb.63.045322

Lu, W., Schmidt, W. G., Briggs, E. L., &; Bernholc, J. (2002). Optical Anisotropy of theSiC(001)-(3×2)Surface: Evidence for the Two-Adlayer Asymmetric-Dimer Model. Physical Review Letters, 85(20), 4381–4384.https://doi.org/10.1103/physrevlett.85.4381 
LibreCat: /record/13755
DOI: 10.1103/physrevlett.85.4381

Esser, N., Schmidt, W. G., Cobet, C., Fleischer, K., Shkrebtii, A. I., Fimland, B. O., &; Richter, W. (2001). Atomic structure and optical anisotropy of III–V(001) surfaces. Journal of Vacuum Science &; Technology B: Microelectronics and Nanometer Structures, 19(5).https://doi.org/10.1116/1.1394730 
LibreCat: /record/13751
DOI: 10.1116/1.1394730

Pulci, O., Schmidt, W. G., &; Bechstedt, F. (2001). Structure and Energetics of P-rich GaP(001) Surfaces. Physica Status Solidi (A), 184(1), 105–110.https://doi.org/10.1002/1521-396x(200103)184:1&#60;105::aid-pssa105&#62;3.0.co;2-d 
LibreCat: /record/13753
DOI: 10.1002/1521-396x(200103)184:1<105::aid-pssa105>3.0.co;2-d