@misc{indiciae86f75345e850, title = {Trapping states in a three-level Lambda system.}, author = {JC Retamal and L Roa and C Saavedra}, year = {1992}, doi = {10.1103/physreva.45.1876}, url = {https://pubmed.ncbi.nlm.nih.gov/9907175/}, note = {Source identifier: 9907175} }