Physical Review, volume 112, second series, no.6, pp.1940-1949. Lancaster & New York: American Physical Society, 1958." /> LASER TECHNOLOGY -- SCHAWLOW, A.L. & Charles H. Townes. "Infrared and Optical Masers", in: <I>Physical Review</I>, volume 112, second series, no.6, pp.1940-1949. Lancaster & New York: American Physical Society, 1958. | Christie's