Arheologičeski proučvanija v zemlišteto na selo Orlovec, Polskotrămbeška obština. (K'm arheologičeskata karta na Bălgarija.) Archaeological excavations on the territory of the village of Orlovets, Polski Trambesh community, included in the archaeological map of Bulgaria - Stanev, Petăr (Izvestija na Regionalen Istoričeski Muzej Veliko Tărnovo, 9 (1994), 1994)