@article{articleab84de59,
title   = {Quantum statistical correlations in thermal field theories: boundary effective theory},
author = {Bessa, A and Brandt, Fernando Tadeu Caldeira and Carvalho, C A A and Fraga, E S},
year = {2010},
doi = {10.1103/physrevd.82.065010},
journal   = {Physical Review D}
}