1. The topological theory of defects in ordered media
2. Topology of Gauge Fields and Condensed Matter;Monastyrsky,1993
3. Vortices in Nonlinear Fields: From Liquid Crystals to Superfluids, from Non-Equilibrium Patterns to Cosmic Strings;Pismen,1999
4. Topological Quantum Numbers in Nonrelativistic Physics;Thouless,1998
5. Dislocations;Friedel,1964