@unpublished{rechberger15[TUW-239713], author = {Rechberger, Helmut and Zoboli, Ottavia and Zessner, Matthias}, title = {{A}dded values of multi-year studies in {M}{F}{A}: the phosphorus budget in {A}ustria from 1990 to 2011}, year = {2015}, note = {{V}ortrag: {I}{S}{I}{E} {C}onference 2015, {S}urrey, {G}{B}; 2015-07-07 -- 2015-07-10} }