Cite
On nontriviality of homotopy groups of spheres
MLA
Ivanov, Sergei O., et al. On Nontriviality of Homotopy Groups of Spheres. 2015. EBSCOhost, https://doi.org/10.4310/HHA.2016.v18.n2.a18.
APA
Ivanov, S. O., Mikhailov, R., & Wu, J. (2015). On nontriviality of homotopy groups of spheres. https://doi.org/10.4310/HHA.2016.v18.n2.a18
Chicago
Ivanov, Sergei O., Roman Mikhailov, and Jie Wu. 2015. “On Nontriviality of Homotopy Groups of Spheres.” doi:10.4310/HHA.2016.v18.n2.a18.