@article{202106.0048,
	doi = {10.20944/preprints202106.0048.v1},
	url = {https://doi.org/10.20944/preprints202106.0048.v1},
	year = 2021,
	month = {June},
	publisher = {Preprints},
	author = {Zahra Ghorbani Ravand and Qi Xu},
	title = {Evaluation Mathematical Models in SSCM and Gap Analysis},
	journal = {Preprints}
}