Indeed, it is a famous Bosnian specialty... Turkish, to be absolutely exact, which became popular back in the times of Ottoman rule in this part of the world, but it has changed somewhat in the Balkans region over the centuries - the most popular being the Bosnian variety
Same with borek (called "burek" in the Balkans)... There's the meat variety, and also cheese if that's what floats your boat, but either way - it must be well greasy, as I'm sure you'll remember!
Ćevapi (the Wikipedia link above) are grilled separately, then served in pita-like bread called "lepinja", while burek is more like pastry baked in an oven, with the meat or cheese in it