2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185390Problems that arise in the application of general prescriptions of the so-called strategy of regions for asymptotic expansions of Feynman integrals in various limits of momenta and masses are discussed with the help of characteristic examples of two-loop diagrams. The strategy is also reformulated in the language of alpha parameters.12 pages, LaTeX with axodraw.styHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext