gilmard

behzad shafaati

Irán

IRINKA3333

IRINKA GUBELADZE

Georgia

arinakryshko

Arina Kryshko

Rusia, Петрозаводск

Mathematician

Koray Akbiyik

Turquía

valeryfedorova

Valeriya Fedorova

Ucrania, Dnepr