1. Monastyrskiy, M.I., Topology of Gauge Fields and Condensed Matter, New York: Plenum, 1993.
2. Makhankov, V.G., Rybakov, Y.P., and Sanyuk, V.I., The Skyrme Model, Berlin: Springer, 1993.
3. Pismen, L., Vortices in Nonlinear Fields, Oxford: Oxford Univ. Press, 1999.
4. Girvin, S., Kvantovyi effekt Kholla (Quantum Hall Effect), Moscow, 2003.
5. Polyakov, A.M., Kalibrovochnye polya i struny (Gage Fields and Strings), Chernogolovka: Inst. Teoreticheskoi Fiziki, 1995.