APA-čujuhus (7. p.)
Ell, T. A., Le Bihan, N., & Sangwine, S. J. (2014). Quaternion fourier transforms for signal and image processing. ISTE : Wiley.
Chicago-čujuhus (17. p.)
Ell, Todd A., Nicolas Le Bihan, juo Stephen J. Sangwine. Quaternion Fourier Transforms for Signal and Image Processing. London ; Hoboken, New Jersey: ISTE : Wiley, 2014.
MLA-čujuhus (9. p.)
Ell, Todd A., et al. Quaternion Fourier Transforms for Signal and Image Processing. ISTE : Wiley, 2014.
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