Measurement of Ll, L alpha, L beta, and L gamma x-ray production cross sections in rare-earth elements by 60-keV photons. [electronic resource] - Physical review. A, Atomic, molecular, and optical physics Aug 1991 - 2198-2201 p. digital Publication Type: Journal Article ISSN: 1050-2947 Standard No.: 10.1103/physreva.44.2198 doi