Authors: G Molteni 
              Publish Date: 2013/04/24
              Volume: 46, Issue: 3-4, Pages: 361-366 
			  
              Abstract
              Let Sp ⊂ R+ be a discrete countable set let αλλ∈Sp be a sequence in l1Sp and fx ≔ ∑λ∈Spαλsinλx f is an almost periodic odd function with λ ±λ ∈ Sp as spectrum We give some conditions about the set S so that int  1+infty fxrm sinRxdxover xrightarrow 0 whenever R → +∞ R ∈ S
              
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