found: His Bel canto [SR] p1998:label (Marcelo Alvarez, tenor)
found: Gardel, C. Marcelo Álvarez sings Gardel [SR] p2000.
found: Marcelo Álvarez WWW site, Apr. 9, 2007(Marcelo Álvarez; b. Cordoba, Argentina; tenor)
found: Grandi Tenori.com, Apr. 9, 2007(Marcelo Álvarez; b. 1963, Cordoba, Argentina)
found: Wikipedia, Apr. 9, 2007(Marcelo Raúl Álvarez; b. Feb. 27, 1962, Cordoba, Argentina; lyric tenor)
found: Internet Movie Database, Apr. 9, 2007(Marcelo Álvarez; b. 1962, Buenos Aires, Argentina; alternate name: Marcello Alvarez)
found: Int. ww in classical mus., 28th ed.(Álvarez, Marcelo; born 1963, Cordóba; Argentine tenor)
found: Marcelo Álvarez WWW site, March 6, 2014(Marcelo Álvarez; Marcelo Raúl Álvarez; born February 27, 1962, Cordóba, Argentina; lyric tenor)
notfound: Baker, 8th ed.;Int. ww in mus., 12th ed.;Int. ww in classical mus., 21st ed.