For citations:
Ovechkina N.I., Shulgina N.A. CYCLICITY THEORY IN ECONOMICS AND DEMOGRAPHY. Vestnik NSUEM. 2012;(2):105-110. (In Russ.)
Ovechkina N.I., Shulgina N.A. CYCLICITY THEORY IN ECONOMICS AND DEMOGRAPHY. Vestnik NSUEM. 2012;(2):105-110. (In Russ.)