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- [2] SPHALERON TRANSITION OF REDUCED O(3) NONLINEAR SIGMA-MODEL PROGRESS OF THEORETICAL PHYSICS, 1990, 84 (06): : 1196 - 1211
- [5] A sphaleron in the (3+1)-dimensional extended sigma-model ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (03): : 537 - 541