TY - RPRT TI - Comment on "memory effects in an interacting magnetic nanoparticle system". AU - R K Zheng AU - Hongwei Gu AU - X X Zhang PY - 2004 DO - 10.1103/physrevlett.93.139702 UR - https://pubmed.ncbi.nlm.nih.gov/15524768/ ID - 15524768 ER -