@article{202105.0197,
	doi = {10.20944/preprints202105.0197.v4},
	url = {https://doi.org/10.20944/preprints202105.0197.v4},
	year = 2023,
	month = {April},
	publisher = {Preprints},
	author = {S. Chen},
	title = {Space Theory},
	journal = {Preprints}
}