Kondo, S., and A. Tani. “Almost-Periodic Solutions to an Initial Boundary Value Problem for Model Equations of Resistive Drift Wave Turbulence ”. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, vol. 16, no. 1, Mar. 2016, pp. 291-33, doi:10.2422/2036-2145.201305_005.