TY - RPRT TI - Current conservation and the nonlinear sigma model in mesoscopic systems. AU - RA Serota AU - FP Esposito AU - M Ma PY - 1989 DO - 10.1103/physrevb.39.2952 UR - https://pubmed.ncbi.nlm.nih.gov/9948587/ ID - 9948587 ER -