CEGRELL, Urban; WIKLUND, Jonas. A Monge-Ampère norm for delta-plurisubharmonic functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 97, n. 2, p. 201–216, 2005. DOI: 10.7146/math.scand.a-14972. Disponível em: https://journals.msp.org/mscand/article/view/725. Acesso em: 24 jul. 2026.