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[2] V. Khaustov. Geometric wave engineering of ring-localized states in open pseudo-hyperbolic cavities. Zenodo, 2026. DOI: 10.5281/zenodo.19944381.

[3] V. Khaustov. Higher-Order Pseudohyperboloids with the Merge Operation: A Geometric Foundation for Programmable Wave Confinement. Zenodo, 2026. DOI: 10.5281/zenodo.19926174.

[4] V. Khaustov. Geometric Wave Engineering. Theory of Higher-Order Pseudohyperboloids. Volume 1. Constructive Geometry: Recursive Constructions and Computational Apparatus. Zenodo, 2026. DOI: 10.5281/ZENODO.20058260