@unpublished{rechberger11[TUW-198056], author = {Rechberger, Helmut}, title = {{T}he {A}ustrian {P} cycle - {S}tatus {Q}uo and open research questions}, year = {2011}, note = {eingeladen; {V}ortrag: {E}uropean scientific workshop on {D}esigning phosphorus cycle at country scale, {B}ordeaux, {F}rance; 2011-07-05 -- 2011-07-06} }