de Bohan, A. ., Piraux, B. ., Ponce, L. ., Taïeb, R. ., Véniard, V. ., & Maquet, A. . (2002). Direct and indirect pathways in strong field atomic ionization dynamics. PHYSICAL REVIEW LETTERS, 89. https://doi.org/10.1103/PhysRevLett.89.113002 (Original work published)