Recycling of plant nutritients from industrial processes : proceedings 10th International CIEC Symposium, December 9-11 1996 Braunschweig-Volkenrode, Germany /

por Schnug, E.
Publicado 1996

Ecological impact of acidification : proceedings of the joint symposium "Environmental Threats to Forest and other Natural Ecosystems" held at the University of Oulu, Finland, Nove...

Publicado 1989