L'economia mondiale e l'imperialismo - Bucharin, Nikolaj Ivanovic. (OLS)http://semarc/name/71757; Santi, Paolo. (OLS)http://semarc/name/71758; Lenin, Vladimir Ilʹič, <1870-1924>. (OLS)http://semarc/name/14277 (Samonà e Savelli,, 1966)
Keywords: Imperialismo. (OLS)http://semarc/subject/2583; Economia mondiale. (OLS)http://semarc/subject/18557

Welcher Quellen bedient sich Ps.-Georg von Arbel? (Ende 8. Anfang 9. Jh.) - Emlek, Idris. (OLS)http://semarc/name/85783 (Symposium Syriacum 7)