Literaturrecherche

Literatur Schultz-Zehden A, Delsa L, Torres C, Relatius R (eds) (2011) Sustainable agriculture in the Baltic Sea Region in times of peak phosphorus and global change. Stockholm: ICAR, Baltic 21 Series 2011/4

Literatur Paulsen HM, Köpke U, Oberson A, Rahmann G (2011) Phosphorus management in organic farming. Baltic 21 Series 2011/4:50-55