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© 1981 Springer-Verlag
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Harris, B.J. (1981). Some spectral gap results. In: Everitt, W.N., Sleeman, B.D. (eds) Ordinary and Partial Differential Equations. Lecture Notes in Mathematics, vol 846. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0089833
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DOI: https://doi.org/10.1007/BFb0089833
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