TY - JOUR T1 - On the trace anomaly and the energy-momentum conservation of quantum fields at D=2 in classical curved backgrounds JO - Brazilian Journal of Physics A1 - Alves, M. A1 - Barcelos-Neto, J. SN - 0103-9733 UL - 10.1590/S0103-97332004000300033 VL - 34 Y1 - 2004 PB - Brazil ER -