Poisson’s formula with principal value integrals and some special Gradshteyn and Ryzhik integrals Khristo N. Boyadzhiev 27-35 PDF
Coexistence of limit cycles and invariant curves for Extended Kukles systems Ricardo Reyes Carocca 37-45 PDF
Certain Inequalities Related to the Chebyshev’s Functional Involving Erdélyi-Kober Operators S.D. Purohit, S.L. Kalla 55-63 PDF
Evaluation of entries in Gradshteyn and Ryzhik employing the method of brackets Ivan Gonzalez, Karen T. Kohl, V. H. Moll 65-84 PDF