AU: L. BRACCHINI, A.M. DATTILO, V. HULL, S.A. LOISELLE, A. TOGNAZZI AND C. ROSSI. TI: Modelling Upwelling Irradiance using Secchi disk depth in lake ecosystems SO: Journal of Limnology VL: 68 NO: 1 PG: 83-91 YR: 2009 DOI: 10.3274/JL09-68-1-09 US: http://dx.doi.org/10.3274/JL09-68-1-09