A comment on the relation between the propagators of dual theories A. P. Baêta Scarpelli, M. Botta Cantcheff and J. A. Helayël-Neto Europhys. Lett., 65 6 (2004) 760-765 Published online: 01 March 2004 DOI: 10.1209/epl/i2003-10192-1