The oldest evidence for human habitation in the Baltic region : a preliminary report on the chronology and archaeological context of the Riadino-5 archaeological siteDruzhinina, Olga; Molodkov, Anatoli; Bitinas, Albertas; Bregman, EnnoGeoarchaeology2016 / p. 156-164 : ill http://dx.doi.org/10.1002/gea.21553