Grass, R. The symbolist mode in the Spanish American modernista novel, 1885-1924: Roland Grass. The symbolist movement in the literature of European languages.(1982).

Grass, Roland. "The Symbolist Mode in the Spanish American Modernista Novel, 1885-1924: Roland Grass." The Symbolist Movement in the Literature of European Languages.(1982) .

Grass, Roland. "The Symbolist Mode in the Spanish American Modernista Novel, 1885-1924: Roland Grass." The Symbolist Movement in the Literature of European Languages.(1982), .