Ragusa M.A.

Bulletin of Mathematical Sciences. World Scientific Publishing Co. Pte Ltd. 2018.

AIP Conference Proceedings. Том 1978. 2018.

Annales Polonici Mathematici. Institute of Mathematics. Polish Academy of Sciences. Том 121. 2018. С. 7-20

Ricerche di Matematica. Springer-Verlag Italia s.r.l.. 2018. С. 1-14

AIMS MATHEMATICS. AMER INST MATHEMATICAL SCIENCES-AIMS. Том 3. 2018. С. 565-574

Zeitschrift fur Angewandte Mathematik und Physik. Birkhauser Verlag AG. Том 68. 2017.

AIMS MATHEMATICS. AMER INST MATHEMATICAL SCIENCES-AIMS. Том 2. 2017.

Calculus of Variations and Partial Differential Equations. Springer New York LLC. Том 56. 2017.

Set-Valued Analysis. Том 25. 2017. С. 807-828