TY - RPRT TI - String ratchets: ac driven asymmetric kinks. AU - G Costantini AU - F Marchesoni AU - M Borromeo PY - 2002 DO - 10.1103/physreve.65.051103 UR - https://pubmed.ncbi.nlm.nih.gov/12059525/ ID - 12059525 ER -