Dissertatio inauguralis historico-philosophica de caussis civitatum constituendarum non nullis ex historia inprimis antiquiore demonstrandis, quam consensu amplissimi ordinis philosophorum in Universitate Literarum Caesarea Dorpatensi, praeside electo D. Georgio Friderico Poeschmann ... professore histor. P. O. et colleg. schol. administr. sodali, pro summis in philosophia rite capessendis honoribus scripsit ac publice defendit Alexander Sievers comes imp. Russ. die 11. Octobris MDCCCIX. Prodiit in officina Michaelis Gerhardi Grenzii, typographi academici