For Sferco there are 8 on Yasni with different names.
Among the most common last names on Yasni Sferco is on position 4519.
The name indicates the geographical origin of the origin, a small village in northern Istria called Sferchi not far from the more 'known Buie and Umag, and near the village of Materada announced by the Istrian writer Fulvio Tomizza that I dedicate' the cover of her the first book written in 1960 at the small village where he was born in 1935.