TY - RPRT TI - Routes to nonsequential double ionization AU - R Kopold AU - W Becker AU - H Rottke AU - W Sandner PY - 2000 DO - 10.1103/physrevlett.85.3781 UR - https://pubmed.ncbi.nlm.nih.gov/11041926/ ID - 11041926 ER -