http://books.google.com/books?id=ZCMPAAAAQAAJ&dq=inauthor%3Aserenus&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&num=100&as_brr=1&hl=de&pg=PA185#v=onepage&q=&f=true Here is one of the old editions with the text together with an assembly of the commentaries that were available at that time. E.