Review Articles: (8)                  D.S.L. Abergel, V. Apalkov, J. Berashevich, K. Ziegler, and T. Chakraborty, Properties                     of graphene: A theoretical perspective ∗ Adv. Phys. 59, 261 (2010) ⇒ (222 pages).              K.-B. Broocks, B. Su, P. Schröter, Ch. Heyn, D. Heitmann, W. Wegscheider, V.M. Apalkov,                     T. Chakraborty, I.E. Perakis, and C. Schüller Linear and ultrafast optical spectroscopy in                     the regime of the quantum Hall effect ⇒ Phys. Stat. Sol. (b) 245, 321 (2008).              C. Schüller, K.-B. Broocks, P. Schröter, Ch. Heyn, D. Heitmann, M. Bichler, W. Wegscheider,                     T. Chakraborty, and V.M. Apalkov, Charged excitons in the quantum Hall regime: Optical                     probe of fractionally charged quasiholes ⇒ Festkörperprobleme / Advances in Solid State                     Physics 44, 81 (2004).              T. Chakraborty: Nanoscopic quantum rings: A new perspective ⇒ Festkörperprobleme /                     Advances in Solid State Physics 43, 79 (2003).              T. Chakraborty and V.M. Apalkov: Quantum cascade transitions in nanostructures                     ⇒ Advances in Physics 52, 455 (2003).              T. Chakraborty: Electron Spin Transitions in Quantum Hall Systems                     ⇒ Advances in Physics 49, 959 (2000).              T. Chakraborty: Interacting Electrons in a Narrow Quantum Hall System                     ⇒ Festkörperprobleme / Advances in Solid State Physics 38, 397 (1999).              T. Chakraborty: Physics of Artificial Atoms: Quantum Dots in a Magnetic Field                     ⇒ Comments Condens. Matter Phys. 16, 35 (1992).