Forecasting of Cereal Crop Harvest on the Basis of an Extrapolation Canonical Model of a Vector Random Sequence. - Igor P. Atamanyuk; Yuriy P. Kondratenko; Anastasiya Poltorak; Natalia N. Sirenko; Vyacheslav Shebanin; Inna Baryshevska; Valeriia Atamaniuk (ICTERI Workshops, 2019)