Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KONDO Takashi and IIO Shuichi and HIRUMA Masaru and FURUHAMA Shoichi,A Study on Abnormal Combustion in Hydrogen Engines. Backfire Caused by Residual Electric Energy for Spark Ignition.,TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B,03875016,The Japan Society of Mechanical Engineers,1997,63,610,2209-2214,https://cir.nii.ac.jp/crid/1390282680872150528,https://doi.org/10.1299/kikaib.63.2209