@article{202303.0223,
	doi = {10.20944/preprints202303.0223.v1},
	url = {https://doi.org/10.20944/preprints202303.0223.v1},
	year = 2023,
	month = {March},
	publisher = {Preprints},
	author = {Dimitar Razpopov and Georgi Dzhelepov and Iva Rumenova Dokuzova},
	title = {On an Indefinite Metric on a 4-Dimensional Riemannian Manifold},
	journal = {Preprints}
}