↑ https://www.lambiek.net/artists/o/olivera_lucho.htm ↑ https://www.lambiek.net/artists/w/wood_robin.htm ↑ http://www.rebrote.com/nippur/index.htm (in Spanish) ↑ https://www.lambiek.net/artists/o/olivera_lucho.htm ↑ http://www.historieteca.com.ar/Historietas/Nippur/nippurdelagash.htm (in Spanish) ↑ http://www.rebrote.com/nippur/html/zaffino.htm