Cac, N. P.; Fink, A. M.; Gatica, J. A. Nonnegative solutions of the radial Laplacian with nonlinearity that changes sign.Proc. Amer. Math. Soc. 123 (1995), no. 5, 1393–1398.
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.