@article{articlefe1e2bd8,
title   = {Equivalence of classical spins and hartree-fock-bogoliubov approximation of the fermionic anharmonic oscillator},
author = {Thomaz, M T and Piza, Antonio Fernando Ribeiro de Toledo},
year = {1995},
doi = {10.1016/0378-4371(95)00100-l},
journal   = {Physica a}
}