I. Yotsuyanagi, “Continuum limit of the O(3) non-linear sigma lattice model in three dimensions”, Physics Letters B, 163, № 1-4, 1985, 207
J. A. Gracey, “Large Nf quantum field theory”, Int. J. Mod. Phys. A, 33, № 35, 2018, 1830032
Massimiliano Ciuchini, J.A. Gracey, “On the N = 2 supersymmetric σ model and Chern-Simons terms”, Nuclear Physics B, 454, № 1-2, 1995, 103
A. Kovner, B. Rosenstein, “Finite fixed points - rule rather than exception”, Physics Letters B, 261, № 1-2, 1991, 97
I.Ya. Aref'eva, “Functional equations for planar graphs”, Physics Letters B, 104, № 6, 1981, 453
A.C. Davis, A.J. Macfarlane, J.W. Van Holten, “Quantum theory of compact and non-compact σ models”, Nuclear Physics B, 232, № 3, 1984, 473
Baruch Rosenstein, Brian J. Warr, S.H. Park, “Thermodynamics of the O(N)-invariant sigma-model in 2 + 1 dimensions”, Nuclear Physics B, 336, № 3, 1990, 435
N.V. Krasnikov, A.B. Kyatkin, “Renormalization of a nonrenormalizable supersymmetric interaction”, Physics Letters B, 256, № 3-4, 1991, 422
T. R. Govindarajan, R. Shankar, N. Shaji, M. Sivakumar, “Is the O(3) σ model with the Hopf term exactly equivalent to a higher-spin theory?”, Phys. Rev. Lett., 69, № 5, 1992, 721
B. Rosenstein, A. Kovner, “On the quantum CPN−1 model”, Nuclear Physics B, 346, № 2-3, 1990, 576