[1]
K. Taheri, G. Rounaghi, M. Chamsaz, and M. Ansari Fard, “A Spectrophotometric Study of Complex Formation of Y3+, La3+ and Ce3+ with Some 18- and 15-Membered Crown Ethers in Methanol”, ajc, vol. 21, no. 2, pp. 1330–1340, Mar. 2010.