Prælectiones Academicæ In Partem V. Digestorum Compositæ, Et In Collegio Regio-Theresiano S. J. Nobilium Traditæ A Præobili, Clarissimo, Ac Consultissimo Domino Joanne Baptista Piker, J. U. D. Et Ibidem Juris Civilis Professore Regio; Quas, Sub Sacratissimis Auspiciis Sacræ, Cæsareæ, Regiæque Majestatis Augustissimæ, Et Invictissimæ Romanor. Imperatricis Mariæ Theresiæ Hungariæ, Et Bohemiæ Reginæ, Archi-Ducis Austriæ, &c. Præter Positiones annexas propugnandas, unà Jus planum juxta Libros Institutionum Imperialium publico Eruditorum Examini submittit, Illustrissimus Dominus Franciscus Xaver. S. R. I. Comes Harrach de Rohrau, &c. Viennæ in Collegio Regio-Theresiano S. J. Nobilium, anno MDCCLI Mense Die