TY - RPRT TI - Casimir effect for curved geometries: proximity-force-approximation validity limits. AU - Holger Gies AU - Klaus Klingmüller PY - 2006 DO - 10.1103/physrevlett.96.220401 UR - https://pubmed.ncbi.nlm.nih.gov/16803290/ ID - 16803290 ER -