%0 Journal Article %T Extinct and endangered archaeophytes and the dynamics of their diversity in Poland %A Maria Zaj c %A Adam Zaj c %A Barbara Tokarska-Guzik %J Biodiversity: Research and Conservation %D 2009 %I Versita %R 10.2478/v10119-009-0004-4 %U http://versita.metapress.com/content/71386jk408308n76/?p=d27e74ff4ea34000b1a19082da62a842&pi=3