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Additional information
State University, Leningrad. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 65, No. 1, pp. 60–69, October, 1985.
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Ismagilov, R.G. Exact instanton-anti-instanton solutions and semiclassical expansion in the σ model with fermions. Theor Math Phys 65, 1010–1016 (1985). https://doi.org/10.1007/BF01028634
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DOI: https://doi.org/10.1007/BF01028634