Analysis of information sources in references of the Wikipedia article "Skanderbeg" in Simple English language version.
Yet in spite of this brilliance in the field, Castriota could do no more than hold his own; reference to the map will show that apart from the Uskiip campaign all these victories took place within the very narrow area of North Albania. ... Nor did the constant victories rob the Ottomans of the territory they held in southern Albania.