B. Basu, and D. Chowdhury. (2013)cite arxiv:1302.1063 Comment: one reference is added, some notation is changed, Accepted for publication in Annals of physics.
S. Yonezawa, T. Kajikawa, and Y. Maeno. (2012)cite arxiv:1212.4954 Comment: 13 pages (Main text: 5 pages; Supplemental Material: 8 pages). To be published in Physical Review Letters.
J. Pujos, and A. Maggs. (2012)cite arxiv:1211.6601 Comment: 7 pages; CECAM workshop: New Challenges in Electrostatics of Soft and Disordered Matter (May 7, 2012 to May 10, 2012): http://www.cecam.org/workshop-0-689.html.
S. Savel'ev, W. Hausler, and P. Hanggi. (2012)cite arxiv:1210.7609 Comment: 5 pages, 1 figure, Phys. Rev. Lett. (2012) (in press); Phys. Rev. Lett. (2012).
E. Sonin. (2012)cite arxiv:1210.3451 Comment: 12 pages, 4 figures, to be published in J. Low Temp. Phys. (Proceedings of the Int. Conference on Quantum Fluids and Solids, Lancaster, 2012).
P. Silvestrov, P. Brouwer, and E. Mishchenko. (2011)cite arxiv:1111.3650 Comment: Use the correct spin operator. Changes affect the surface states spin structure, but not the spectrum.
F. Loder, A. Kampf, and T. Kopp. (2012)cite arxiv:1206.1738 Comment: To be bublished in "Superconductors", InTech (Rijeka), 2012 (ISBN 979-953-307-798-6).
O. Kupervasser, H. Nikolić, and V. Zlatić. (2010)cite arxiv:1011.4173 Comment: 21 pages, 5 figures, revised, version accepted for publication in Found. Phys.