Responses in sediment phosphorus and lanthanum concentrations and composition across 10 lakes following applications of lanthanum modiﬁed bentonite /Line Dithmer a, b , Ulla Gro Nielsen a , Miquel Lürling c , Bryan M. Spears d , Said Yasseri e , Daniel Lundberg f , Alanna Moore d , Nicholai D. Jensen a , Kasper Reitzel b, * - Dithmer,Line