O proischoždenii i lokal'noj specifike keramičeskich naborov kul'tury pskovskich dlinnych kurganov. (On the origin and local features of pottery associations of the Pskov long burial mounds) - Lopatin, Nikolaj Vladimirovič (Kratkie Soobščenija Instituta Archeologii (Moskva), 214 (2003), 2003)