Kinoshita, Masao; Maruyama, Takuya; Sagayama, Toru (1999), “Preliminary activity of Leonid meteor storm observed with a video camera in 1997”, Geophysical Research Letters26 (1): 41-44, Bibcode: 1999GeoRL..26...41K, doi:10.1029/1998GL900241
Kinoshita, Masao; Maruyama, Takuya; Sagayama, Toru (1999), “Preliminary activity of Leonid meteor storm observed with a video camera in 1997”, Geophysical Research Letters26 (1): 41-44, Bibcode: 1999GeoRL..26...41K, doi:10.1029/1998GL900241