"Liber IV, Distinctio 17, Quaestio 16" . . . . . . . . . . . . . . "4" . "Commentarius in libros Sententiarum, Liber 4, Liber IV, Distinctio 17 [Penn Transcription]" . "utrum sit actus alicuius virtutis" . "0016" . "wdr-l4d17q16" . . "0019" . . .