TY - RPRT TI - Inversionless amplification in a three-level medium. AU - O Kocharovskaya AU - P Mandel AU - YV Radeonychev PY - 1992 DO - 10.1103/physreva.45.1997 UR - https://pubmed.ncbi.nlm.nih.gov/9907189/ ID - 9907189 ER -