Kashcheev, V. N. Kinks in systems with cubic and quartic anharmonism. (English) Zbl 1268.81142 Teor. Mat. Fiz. 74, No. 1, 61-68 (1988); translation in Theor. Math. Phys. 74, No. 1, 43-48 (1988). MSC: 81U05 81T99 PDFBibTeX XMLCite \textit{V. N. Kashcheev}, Teor. Mat. Fiz. 74, No. 1, 61--68 (1988; Zbl 1268.81142); translation in Theor. Math. Phys. 74, No. 1, 43--48 (1988) Full Text: DOI
Vladimirov, S. A. Symmetry groups of Lagrangians of chiral fields taking values in \(S^2\). (Russian) Zbl 0449.58012 Teor. Mat. Fiz. 44, 410-413 (1980). MSC: 58E30 57S99 70H99 37J99 81T99 PDFBibTeX XMLCite \textit{S. A. Vladimirov}, Teor. Mat. Fiz. 44, 410--413 (1980; Zbl 0449.58012)
Vinogradov, V. M. Dreidimensionale kovariante Formulierung des Zweikörperproblems in der Quantenfeldtheorie. (Russian) Zbl 0212.12704 Teor. Mat. Fiz. 7, 289-297 (1971). MSC: 35Q72 70F05 81T99 35Q40 PDFBibTeX XMLCite \textit{V. M. Vinogradov}, Teor. Mat. Fiz. 7, 289--297 (1971; Zbl 0212.12704)