Some issues also have distinctive titles and are called número monográfico.
Plný text je volně přístupný
Some numbers issued in combined form.
Two issues published in 1997-1999.
Some volumes have a special issue.
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212
In Spanish; some issues have abstracts in English and Spanish.
Description based on: Vol. 1 (1972); title from issue table of contents (publisher’s Web site, viewed June 12, 2014).