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[1]Ledneczki,István;Agócs,PálM.;Molnár,Árpád[Synlett,2003,#14,p.2255-2257]
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[1]Tverdokhlebov,AntonV.;Resnyanska,ElizavetaV.;Tolmachev,AndreyA.;Andrushko,AlexanderP.[Synthesis,2003,#17,p.2632-2638]