TY - RPRT TI - Route to direct multiphoton multiple ionization AU - Lambropoulos, P AU - Nikolopoulos, G M AU - Papamihail, K G PY - 2011 DO - 10.1103/physreva.83.021407 UR - https://www.osti.gov/biblio/21537099 ID - 21537099 ER -