Atomic absorption spectroscopy past, present and future. Pt. 2 : [articles] to commemorate the 25th anniversary of Alan Walsh's landmark paper in Spectrochimica acta / editor: P. W. J. M. Boumans. — [S. l. : s. n., 1981]. — С. [4], 395―485. — (Spectrochimica acta. Atomic spectroscopy ; vol. 36, № 5) - Boumans, P. W. J. M. (Spectrochimica acta, 1981)