@misc{indiciae6cfdd45d45d6, title = {Sub-Doppler light amplification in a coherently pumped atomic system.}, author = {Y Zhu and J Lin}, year = {1996}, doi = {10.1103/physreva.53.1767}, url = {https://pubmed.ncbi.nlm.nih.gov/9913070/}, note = {Source identifier: 9913070} }