Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HANDA Takashi and SUDA Kyo and KATO Yoshihiro and YAMAMURA Takaki,Measurement of Suspended Particle in Atmosphere by Optical Particle Counter,Transactions of the Society of Instrument and Control Engineers,04534654,The Society of Instrument and Control Engineers,1979,15,6,792-798,https://cir.nii.ac.jp/crid/1390282679480792320,https://doi.org/10.9746/sicetr1965.15.792