DANCER, Edward N. On the number of stable positive solutions of weakly nonlinear elliptic equations when the diffusion is small. Topological Methods in Nonlinear Analysis. Online. 25 May 2021. Vol. 59, no. 2A, pp. 467 - 474. [Accessed 7 February 2026]. DOI 10.12775/TMNA.2020.025.