APA-čujuhus (7. p.)
Liu, Y., Li, J., & Huang, W. (2014). Planar dynamical systems: Selected classical problems. De Gruyter ; Science Press.
Chicago-čujuhus (17. p.)
Liu, Yirong, Jibin Li, juo Wentao Huang. Planar Dynamical Systems: Selected Classical Problems. Berlin : Beijing: De Gruyter ; Science Press, 2014.
MLA-čujuhus (9. p.)
Liu, Yirong, et al. Planar Dynamical Systems: Selected Classical Problems. De Gruyter ; Science Press, 2014.
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