1. Anon, 1980 : National report for Korea on activities related to poplar and willow cultivation, exploitation and utilization . Prepared by The National Poplar Commission of the Republic of Korea, May 1980. 16th Session, International Poplar Commission, FAO, Ismit, Turkey.
2. Influence de ľâge des feuilles de peuplier sur la sensibilitéà Marssonina brunnea
3. H. Klebahn, 1918 : Haupt- und Nebenfruchtformen der Askomyzeten . Verl. Gebr. Borntraeger, Leipzig. 395 p.