Repositorio Institucional de la Universidad de Oviedo

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We are very grateful to Alfredo Giambrone, Emanuel Malek, Henning Samtleben and Mario Trigiante for collaboration in the related work [25]. Especially to Mario Trigiante for collaboration also in [16]. AG is supported by the Spanish government grant PGC2018-096894-B-100. CS is supported by IISN-Belgium (convention 4.4503.15) and is a Research Fellow of the F.R.S.-FNRS (Belgium).