In this Spanish name, the first or paternal surname is Martínez and the second or maternal family name is Zuviría.
Gustavo Adolfo Martínez Zuviría (October 23, 1883 – March 28, 1962), best known under his pseudonym Hugo Wast, was a renowned Argentine novelist and script writer.[1][2]
^Samperio, José María (1925). "An Author Whose Books Have Appealed to Thousands," Inter-America8, pp. 535–9.
^Sedgwick, Ruth (1929). "Hugo Wast, Argentina's Most Popular Novelist," The Hispanic American Historical Review, Vol. 9, No. 1, pp. 116–126.