TY - RPRT TI - Ferromagnetic coupling in nonmetallic Cu2+ compounds. AU - S Feldkemper AU - W Weber AU - J Schulenburg AU - J Richter PY - 1995 DO - 10.1103/physrevb.52.313 UR - https://pubmed.ncbi.nlm.nih.gov/9979608/ ID - 9979608 ER -