@article {tan2015submicron, title = {Submicron particle sizing by aerodynamic dynamic focusing and electrical charge measurement}, journal = {Particuology}, volume = {18}, year = {2015}, pages = {105{\textendash}111}, publisher = {Elsevier}, author = {Tan, Zhongchao and Givehchi, Raheleh and Saprykina, Alena} }