The Sboreanovo group is defined usually as part of Cultures with Stamped ornamentation of Pottery of Northern Bulgaria. Fluted ornamentation of pottery, however, is also a typical or even dominant feature for Sboreanovo group (Гоцев, Шалганова 2004: 60-61; Czyborra 2005: 173). Besides, the main type of Sboreanovo vessel (Czyborra 2005: 99-101) is the so called cantaros (as well as Zimnicea-Plovdiv pottery (Alexandrescu 1973: 77-78, 81)). The cantaros is a big vessel with two handles and open mouth; this kind of vessel is found neither in Kozia, nor in Saharna-Solonceni.
Evidently, it looks more probable that the Vyrbitsa tradition of bronze axes production was brought into the Carpathian-Dniester region by some population belonging to the "cannelure Hallstatt" community. It could be the Hinova-Mala Vrbica group. It seems to be a more preferable idea, as we see some other metalware (bracelets and fibulas) in the Carpathian-Dniester region that seem to be associated with the coming of Hinova-Mala Vrbica population. The Hinova-Mala Vrbica group made a substantial contribution to the origin of Kishinev-Korlateni culture (Guma 1995: 108).
There is some other argument to this idea. As it follows from the mapping of V. A. Dergachev, the axes with vertical lines were spread in three areas chiefly: in central and western parts of Northern Bulgaria, in the Carpathian-Dniester region and in Transylvania in the area of Gava culture (Dergacev 2002: 167-169, taf.123), The Gava culture is a culture with fluted ornamentation of pottery too.
It is really important that axes with vertical lines from the Carpathian-Dniester region and Transylvania have a special ring at the back side. This distinguishes them from the Bulgarian variant of axes with vertical lines. The Bulgarian variant of axes with vertical lines has no rings (as V. A. Dergachev points out, isolated evidences of axes with ring were found in Northern Bulgaria) (Dergacev 2002: 168, taf.123).
But axes with vertical lines from area of Hinova-Mala Vrbica group have this ring as well.
V. A. Dergachev suggested that these axes with vertical lines and a special ring appeared as a result of some synthesis of Transylvania and Northern Bulgaria metalwork traditions (Дергачев 1997: 58; Dergacev 2002: 168).
Where did this synthesis take place? We can suppose that it was the Hinova-Mala Vrbica area.
Thus, the axes with vertical lines and a special ring were spread in the cultures with fluted ornamentation of pottery mainly. And, as it results from the mapping (Dergacev 2002: taf. 123;