1. Araki, H. (1961). Studies on pollinosis: II. Sensitization with pollens in Japan (in Japanese). Japanese Journal of Allergology, 10(6), 354–370.
2. Conner, W. D. (1966). An inertial-type particle separator for collecting large samples. Journal of Air pollution Control Association, 16, 35–38.
3. Delaunay, J. J., Seymour, C., & Feuillet, V. (2004). Investigation of short-range cedar pollen forecasting. Physical Review E, 70, 066214.
4. Durham, O. C. (1946). The volumetric incidence of atmospheric allergens IV. A proposed standard method of gravity sampling, counting, and volumetric interpolation of results. Journal of Allergy, 17, 79–86.
5. Enokido, H., UGWU, C. U., Mitsumoto, K., Yabusaki, K., & Aoyagi, H. (2008). Comparative analysis of autofluorescence and diameter for the spherical pollen of Cryptomeria japonica and Chamaecyparis obtusa pollen in Japan (in Japanese). Japanese Journal of Palynology, 54(2), 69–77.