Expreso Imaginario
Expreso Imaginario (Imaginary Express) published from August 1976 to January 1983, in total of 78 issues, was an influential rock magazine in Argentina (circulation of about 15 000). (Expreso Imaginario) (Detailed history of the Expreso Imaginario.)
Part of the interview from Down Beat, May 18, 1978 translated to Spanish.
Source: mercadolibre.com.ar