information, genetic conservation units and related resources. EuropeanForestGeneticResourcesProgramme(英语:EuropeanForestGeneticResourcesProgramme) (EUFORGEN)
platyphyllos (页面存档备份,存于互联网档案馆) - distribution map, genetic conservation units and related resources. EuropeanForestGeneticResourcesProgramme (EUFORGEN)
pyraster: Technical guidelines of genetic conservation and use (PDF), EuropeanForestGeneticResourcesProgramme, 2003 [2018-05-18], (原始内容 (PDF)存档于2016-10-20)