Kaur, Paramjit, and Ajay Wasan. “Coherent Population Trapping in An Inhomogeneously Broadened \(\Lambda\)-System With Multiple Excited States”. Journal of Atomic, Molecular, Condensed Matter and Nano Physics 3, no. 2 (July 30, 2016): 81–88. Accessed November 24, 2024. http://rgnpublications.com/journals/index.php/jamcnp/article/view/464.