2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78852We give an elementary proof of the following projectivity criterion of Huybrechts: a compact Kähler surface is projective if and only if the dual Kähler cone contains an inner integral point.AMS TeX, 8 pagesAlgebraic Geometry32J20, 32J27text