YANAGAWA, Kohji. Linearity defect and regularity over a Koszul algebra. MATHEMATICA SCANDINAVICA, [S. l.], v. 104, n. 2, p. 205–220, 2009. DOI: 10.7146/math.scand.a-15095. Disponível em: https://tidsskrift.dk/math/article/view/15095. Acesso em: 14 aug. 2026.