TY - RPRT TI - Negative length orbits in normal-superconductor billiard systems AU - J Cserti AU - G Vattay AU - J Koltai AU - F Taddei AU - CJ Lambert PY - 2000 DO - 10.1103/physrevlett.85.3704 UR - https://pubmed.ncbi.nlm.nih.gov/11030986/ ID - 11030986 ER -