APA:
Cafuta, Kristijan, Klep, Igor, Povh, Janez (2015). Rational sums of hermitian squares of free noncommutative polynomials.
Ars mathematica contemporanea, volume 9, issue 2, str. 243-259.
URN:NBN:SI:doc-BQP6DQ4T from http://www.dlib.si
MLA:
Cafuta, Kristijan, Klep, Igor, Povh, Janez. "Rational sums of hermitian squares of free noncommutative polynomials."
Ars mathematica contemporanea volume 9. issue 2 (2015) str. 243-259.
<http://www.dlib.si/?URN=URN:NBN:SI:doc-BQP6DQ4T>