The inhabitants of Yugoslavia during the Copper Age were, like those of Hungary, also uniformly dolichocephalic. Unfortunately, here also we have no further information of racial significance. As one approaches the mouth of the Danube, however, this dolichocephalic uniformity disappears. Four skulls from Russe in Bulgaria, include one male of Corded type, a mesocephalic male, and two brachycephalic females.
From this evidence, such as it is, we may deduce that the people who brought copper into the Danube Valley at the close of the Neolithic period came from two centers, southern Russia and the Caucasus, and Anatolia, by way of Troy. The chief carriers were the Corded people or some others equally dolichocephalic, while brachycephals from Asia Minor were of little importance from the racial standpoint.
Carleton Stevens Coon, "The Copper Age in Europe North of the Mediterranean Lands: Danubian Movements and Bell Beakers"
R1b Bell Beaker, судећи по овоме, у Европу долази из два правца. Први је из јужне Русије и са Кавказа, а други из Анадолије, "преко Троје". Видимо такође и ком расном типу су припадали ови људи. Доминантно долихокефали "Кордед" типа, уз нешто брахикефала из Мале Азије.