. On the Minimal Number of Solutions of the Equation φ(n+k)=Mφ(n), M=1,2. Journal of Integer Sequences [Internet]. 2023 ;26. Available from: https://cs.uwaterloo.ca/journals/JIS/VOL26/Sillari/sillari3.html
. Doulbeault and J-invariant Cohomologies on Almost Complex Manifolds. Complex Analysis and Operator Theory [Internet]. 2021 ;15. Available from: https://link.springer.com/article/10.1007/s11785-021-01156-w