1. A.I. Calvo, C. Alves, A. Castro, V. Pont, A.M. Vicente, R. Fraile, Atmos. Res. (2013). https://doi.org/10.1016/j.atmosres.2012.09.02
2. Ministry of the environment Japan, Air quality / Transportation; https://www.env.go.jp/air/osen/pm/ca/manual.html
3. https://www.epa.gov/sites/default/files/2019-11/documents/mthd-3-3.pdf
4. S. Yatkin, H.S. Amin, K. Trzepla, A.M. Dillner, Aerosol Sci. Technol. (2016). https://doi.org/10.1088/1757-899X/1011/1/012058
5. S. Yatokin, M. Gerboles, A. Borowiak, G. Tanet, V. Pedroni, R. Passarella, F. Lagler, Evaluation of EDXRF for determination of elements in PM10 Filters, EUR 24983 EN (Publication office of the European Union, Luxemburg, 2011), pp.1–81