Deforming black hole and cosmological solutions by quasiperiodic and/or pattern forming structures in modified and Einstein gravityLaurenţiu Bubuianu and Sergiu I. VacaruEur. Phys. J. C, 78 5 (2018) 393DOI: https://doi.org/10.1140/epjc/s10052-018-5853-6