Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Euler, Leonhard and Verdun, Andreas",Leonhardi Euleri Commentationes astronomicae : ad theoriam perturbationum pertinentes,,,2021,Leonhardi Euleri Opera omnia,,9783764314736,,https://cir.nii.ac.jp/crid/1130296796585874490