Alessandro Guerzoni
http://www.operabase.ch/a2list.php?name=Alessandro_Guerzoni&aid=354&lang=it
http://www.stagedoor.it/it/Artist/Alessandro%20Guerzoni/Basso/W/Biography/
Guerzoni Alessandro Verdi Rigoletto Sparafucile
https://www.youtube.com/watch?v=V8CDFCxQPb0
https://www.wiener-staatsoper.at/ensemble-gaeste/detail/artist/383-guerzoni-alessandro/
Danielle de Niese
https://en.wikipedia.org/wiki/Danielle_de_Niese
Danielle de Niese "Meine Lippen, sie küssen so heiss"
https://www.ted.com/talks/danielle_de_niese_a_flirtatious_aria?language=hr
http://www.bach-cantatas.com/Bio/Niese-Danielle.htm
Bernarda Fink
https://en.wikipedia.org/wiki/Bernarda_Fink
http://www.bach-cantatas.com/Bio/Fink-Bernarda.htm
Ave Maria (William Gomez) by Bernarda Fink
https://www.youtube.com/watch?v=1AAknafsd9E
Interview de Bernarda Fink, mezzo-soprano
https://www.youtube.com/watch?v=XW8RPcJm7iI