@article{article5df9023b,
title   = {Hole spectrum in the two-dimensional hubbard model},
author = {Carneiro, Carlos Eugenio Imbassahy and Oliveira, Mario José de and Salinas, Silvio Roberto de Azevedo},
year = {1990},
doi = {10.1016/0921-4534(90)90396-v},
journal   = {Physica C}
}