BOMAN, Jan; LINUSSON, Svante. Examples of Non-Uniqueness for the Combinatorial Radon Transform Modulo the Symmetric Group. MATHEMATICA SCANDINAVICA, [S. l.], v. 78, p. 207–212, 1996. DOI: 10.7146/math.scand.a-12583. Disponível em: https://tidsskrift.dk/math/article/view/12583. Acesso em: 13 aug. 2026.