Kwon Hyuk-Yang: An etymology of MK suïr 'rice wine; liquor; alcoholic drink', NK suuy- 'to fall in the mire', NK suki- 'to soak, dip, steep, souse' ModK swī- 'to soak (cloth) in ttïmul (water that has washed rice) so as to gloss it'. In: Daedong Munhwa Yongu = The Journal of Eastern Studies. pp. 139-192. (2009)
Kwon Hyuk-Yang: Remarks on the etymology of MK tewi- 'to clasp, clench, grasp'. In: Altai Hakpo : journal of the Altaic Society of Korea. pp. 165-182. (2008)