DAS, Paramita; GHOSH, Shamindra Kumar; GUPTA, Ved Prakash. Perturbations of Planar Algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 114, n. 1, p. 38–85, 2014. DOI: 10.7146/math.scand.a-16639. Disponível em: https://journals.msp.org/mscand/article/view/433. Acesso em: 24 jul. 2026.