" " " " ɡ : http://www.archive.org/download/altorath/1.pdf http://www.archive.org/download/altorath/1k.pdf http://www.archive.org/download/altorath/2.pdf http://www.archive.org/download/altorath/2k.pdf http://www.archive.org/download/altorath/3.pdf http://www.archive.org/download/altorath/5.pdf