Poláčik, P., and D. A. Valdebenito. “Existence of Partially Localized Quasiperiodic Solutions of Homogeneous Elliptic Equations on R^{N+1}”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, vol. 21, no. special, 1-2, Dec. 2020, pp. 771-00, doi:10.2422/2036-2145.201809_013.