The new association in xeromesophilic oak forests of Aceri tatarici–Quercion roboris alliance (class Quercetea pubescentis) in the basin the lower Sula Journal title: Чорноморський ботанічний журнал Authors: Yevgen Vorobyov, Natalia Smoliar, Olena Smagliuk, Ihor Solomakha Subject(s):