Victoria C. Smith; et al. (2013-05-01). "Identification and correlation of visible tephras in the Lake Suigetsu SG06 sedimentary archive, Japan: chronostratigraphic markers for synchronising of east Asian/west Pacific palaeoclimatic records across the last 150 ka". Quaternary Science Reviews. 67: 125, 127. Bibcode:2013QSRv...67..121S. doi:10.1016/j.quascirev.2013.01.026.
Victoria C. Smith; et al. (2013-05-01). "Identification and correlation of visible tephras in the Lake Suigetsu SG06 sedimentary archive, Japan: chronostratigraphic markers for synchronising of east Asian/west Pacific palaeoclimatic records across the last 150 ka". Quaternary Science Reviews. 67: 125, 127. Bibcode:2013QSRv...67..121S. doi:10.1016/j.quascirev.2013.01.026.