@misc{indiciaeb7b39092ebf6, title = {Focusing ions at atmospheric pressure using nonlinear DC voltage sequences applied to a stacked ring ion guide}, author = {Hollerbach, Adam L. and Ibrahim, Yehia M. and Norheim, Randolph V. and Metz, Thomas O. and Ewing, Robert G.}, year = {2022}, doi = {10.1016/j.ijms.2022.116948}, url = {https://www.osti.gov/biblio/1895127}, note = {Source identifier: 1895127} }