TY - ECHAP AU - E. Arimondo N1 - JILA Pub. 5423 PB - Elsevier, Amsterdam PY - 1996 EP - 257\textendash354 TI - Coherent population trapping in laser spectroscopy UR - http://www.df.unipi.it/gruppi/arimondo/documents/EA157.pdf VL - 35 ER -