TY - GENERIC DO - 10.20944/preprints202106.0048.v1 UR - http://dx.doi.org/10.20944/preprints202106.0048.v1 TI - Evaluation Mathematical Models in SSCM and Gap Analysis T2 - Preprints AU - Ravand, Zahra Ghorbani AU - Xu, Qi PY - 2021 DA - 2021/06/02 PB - Preprints