Murphy, J. G.; Gregoire, P. K.; Tevlin, A. G.; Wentworth, G. R.; Ellis, R. A.; Markovic, M. Z.; VandenBoer, T. C. Observational Constraints On Particle Acidity Using Measurements And Modelling Of Particles And Gases. Faraday Discussions 2017, 200, 379 - 395.