POLETAEVA, E. Penrose’s tensors on supergrassmannians. MATHEMATICA SCANDINAVICA, [S. l.], v. 72, p. 161–190, 1993. DOI: 10.7146/math.scand.a-12443. Disponível em: https://tidsskrift.dk/math/article/view/12443. Acesso em: 13 aug. 2026.