Seasonal and scale-dependent variability in nutrient- and allelopathy-mediated macrophyte–phytoplankton interactionsP. Lombardo, M. Mjelde, T. Källqvist and P. BrettumKnowl. Managt. Aquatic Ecosyst., 409 (2013) 10DOI: https://doi.org/10.1051/kmae/2013055