APA-čujuhus (7. p.)
Ivanov, S. P., & Vassilev, D. N. (2011). Extremals for the Sobolev inequality and the quaternionic contact Yamabe problem. World Scientific.
Chicago-čujuhus (17. p.)
Ivanov, Stefan P., juo Dimiter N. Vassilev. Extremals for the Sobolev Inequality and the Quaternionic Contact Yamabe Problem. Singapore ; Hackensack, N.J.: World Scientific, 2011.
MLA-čujuhus (9. p.)
Ivanov, Stefan P., juo Dimiter N. Vassilev. Extremals for the Sobolev Inequality and the Quaternionic Contact Yamabe Problem. World Scientific, 2011.
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