Dyskusijni pytannja rann'oji istoriji Smolens'ka (do problemy kyevo-smolens'kyh vidnosyn 9-13 st.). Disputable problems of the early history of Smolensk (on the problem of Kiev-Smolensk relations of the 9th-13th centuries) - Pisarenko, Ju. G. (Archeologija (Kiev), 1991,3 (1991), 1991)