Deletion of Nardo Zalko

Comment: Per . One of the greatest historians of tango and one of the few (if not the only) to approach the issue of the development of tango in Paris in the early 20 century per https://www.elmercuriodigital.net/2011/10/paris-recuerda-al-fallecido-periodista.html cited sources. The article still lacks a satisfying number of citations, however, but this is no enough reason to delete this bio
Stance: keep
Cited policy: Wikipedia:Notability (WP:AUTHOR)