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by Verbruggen, H. B.; Rodd, M. G.
by Lemke, H.U.
by d'Agostino, Riccardo; Favia, Pietro; Oehr, Christian; et al.
by Baer, N. S.; Sabbioni, C.; Sors, A. I.
by Brink, Elsabe
by Mashlan, Miroslav; Zboril, Radek
by IARC
by Kolymbas, D.
by HONG, Deog ki; Pyungwon, Ko
by Solrha