Yes, I am aware of the rule. I'm rather new here, so I don't know how to indicate the source of something that has no valid online presence. But if anyone wants to double check the street names, that's the only possible online way to do it - and that's why I warned about the discrepancies between said map and actual street signs.

Hi, the source are actual street signs. Most names can be proofed by the Kolárovo map made by sinex.sk, however there are some discrepancies.