MathSciNet bibliographic data MR257689 (41 #2339) 46.01 (35.00) Kascic, M. J., Jr.; Roth, B. A closed subspace of ${\cal D}(\Omega )$${\cal D}(\Omega )$ which is not an ${\rm LF}$${\rm LF}$-space. Proc. Amer. Math. Soc. 24 1970 801–802. Article

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