St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
Chicago-čujuhus (17. p.)St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
MLA-čujuhus (9. p.)St. Petersburg Polytechnical University Journal: Physics and Mathematics | Peter the Great St.Petersburg Polytechnic University. Cambridge University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.