TY - GENERIC DO - 10.20944/preprints202012.0292.v1 UR - http://dx.doi.org/10.20944/preprints202012.0292.v1 TI - The Ages of Zone of Proximal Development for Retrospective Time Assessment and Anticipation of Time Event T2 - Preprints AU - Portnova, Galina AU - Rebreikina, Anna AU - Martynova, Olga PY - 2020 DA - 2020/12/11 PB - Preprints