- Vladimir Bobkov, Mieko Tanaka, “On subhomogeneous indefinite p-Laplace equations in the supercritical spectral interval”, Calc. Var., 62, no. 1, 2023, 22
- Vladimir Bobkov, Mieko Tanaka, “Abstract multiplicity results for (p, q)-Laplace equations with two parameters”, Rend. Circ. Mat. Palermo, II. Ser, 2024
- Laura Gambera, Umberto Guarnotta, “On Bobkov-Tanaka type spectrum for the double-phase operator”, Advanced Nonlinear Studies, 2025
- Nirjan Biswas, Laura Gambera, Umberto Guarnotta, “On the linear independence condition for the Bobkov-Tanaka first eigenvalue of the double-phase operator”, Applied Mathematics Letters, 166, 2025, 109549