Belgorod State University Scientific Bulletin: Mathematics & Physics. Belgorod State University.
Cita Chicago (17th ed.)Belgorod State University Scientific Bulletin: Mathematics & Physics. Belgorod State University.
Cita MLA (8th ed.)Belgorod State University Scientific Bulletin: Mathematics & Physics. Belgorod State University.
Atenció: Aquestes cites poden no estar 100% correctes.