@article{EmonsHuellenkremerSchoening2006, author = {H. Emons and B. H{\"u}llenkremer and Michael Josef Sch{\"o}ning}, title = {Detection of metal ions in aqueous solutions by voltohmmetry}, journal = {Fresenius' Journal of Analytical Chemistry. 369 (2001), H. 1}, pages = {42 -- 46}, year = {2006}, }