MALANCHINI, Paolo, BISCI, Giovanni Molica and SECCHI, Simone. Mountain pass solutions for an entire semipositone problem involving the Grushin subelliptic operator. Topological Methods in Nonlinear Analysis. Online. 22 March 2026. Vol. 67, no. 1, pp. 183 - 208. [Accessed 2 June 2026]. DOI 10.12775/TMNA.2025.037.