What does PRL stand for?

He and his colleagues report their findings in the March 31 Physical Review Letters.

The theoretical and experimental papers were published simultaneously in the February 11, 2002, issue of Physical Review Letters.

5, 2005 Physical Review Letters, the NIST team demonstrated that nano-oscillators synchronize with incoming microwaves, suggesting that the devices might be suitable for making directional receivers and transmitters that can pick up or radiate microwave energy in chosen orientations.

14 Physical Review Letters, Sylvia Jeney of the Ecole Polytechnique Federale de Lausanne in Switzerland and her colleagues in Germany and Texas report laser-based measurements of the motion of microscopic beads of polystyrene and silica in water.

83 percent change, I published a paper in Physical Review Letters in 1965 that demonstrated a 3.