Matsui Y, Sakai N, Tsuda A, Terada Y, Takaoka M, Fujimaki H, Uchiyama I (2009). "Tracking the pathway of diesel exhaust particles from the nose to the brain by X-ray florescence analysis". Spectrochimica Acta Part B: Atomic Spectroscopy. 64 (8): 796–801. Bibcode:2009AcSpB..64..796M. doi:10.1016/j.sab.2009.06.017.
Matsui Y, Sakai N, Tsuda A, Terada Y, Takaoka M, Fujimaki H, Uchiyama I (2009). "Tracking the pathway of diesel exhaust particles from the nose to the brain by X-ray florescence analysis". Spectrochimica Acta Part B: Atomic Spectroscopy. 64 (8): 796–801. Bibcode:2009AcSpB..64..796M. doi:10.1016/j.sab.2009.06.017.