Jana, B.Majumder, A.Kathar, P. T.Das, A. K.Mago, V. K.2011-10-042011-10-042011Applied Physics-B, 2011. Vol. 102 (4): pp. 841-849http://hdl.handle.net/123456789/51634152 bytestext/htmlenIonization yieldphotoionization processoptically thick atomic mediumbariumIonization yield of two-step photoionization process in an optically thick atomic medium of bariumArticle