@book{236871,
	author = {Fastner, J. and Flieger, I.},
	title = {Optimised extraction of microcystins from field samples - A comparison of different solvents and procedures},
	note = {Fastner, J-Inst Wasser Boden &/Lufthyg Umweltbundesamtes/Correnspl 1/D-14195 Berlin, Germany}
}