Casini, Emanuele; Papini, Pier Luigi A counterexample to the infinity version of the Hyers and Ulam
stability theorem.Proc. Amer. Math. Soc. 118 (1993), no. 3, 885–890.
For users without a
, Relay Station allows linking from MR numbers in online mathematical literature
directly to electronic journals and original articles.
Subscribers receive the added value of full MathSciNet reviews.