St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
Cita Chicago (17th ed.)St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
Cita MLA (9th ed.)St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
Atenció: Aquestes cites poden no estar 100% correctes.