Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KHOVANSKII A. G.,The Riemann-Roch theorem for integrals and sums of quasipolynomials on virtual polytopes,St. Petersburg Math. J.,,,1993,4,,789-812,https://cir.nii.ac.jp/crid/1570572700075192704,