@article{202307.0401,
	doi = {10.20944/preprints202307.0401.v1},
	url = {https://doi.org/10.20944/preprints202307.0401.v1},
	year = 2023,
	month = {July},
	publisher = {Preprints},
	author = {Hong Cun Zhai},
	title = {Addition Formula of the Theta Function and Square Sums Theorem},
	journal = {Preprints}
}