Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Piou, D. 1994. De nouveaux deperissements de pin dans le Nord de la France. Le cas particulier de la forêt d'Orleans. [Forest decline of pine in the north of France: the example of the Orleans forest]. Revue Forestière Française (Nancy) 46:538-546.