00717nam0-22002651i-450-990001309030403321000130903FED01000130903(Aleph)000130903FED0100013090320000920d--------km-y0itay50------baitaPartial Differential Equations: Time-Periodic SolutionsEquazioni differenziali alle derivate parzialiVejvoda,Otto40548ITUNINARICAUNIMARCBK9900013090304033217-E-1720995MA1MA135-0235B10Partial differential equations348123UNINAING01