SADAIC
Same IPI, with two entries in SADAIC
- http://sadaic.org.ar/obras.autor.php?codigo=3780 "LE PERA ALFREDO" (1 page for works)
- http://sadaic.org.ar/obras.autor.php?codigo=3781 "LE PERA ALFREDO (-)" (2 pages for works)
De Gullo - two persons or one?