Burstall, F. E., Leschke, K., Pinkall, U., Pedit, F., & Ferus, D. Conformal Geometry of Surfaces in S4 and Quaternions. Springer.
Čikaški stil citiranja (17. izdanje)Burstall, Francis E., Katrin Leschke, Ulrich Pinkall, Franz Pedit, i Dirk Ferus. Conformal Geometry of Surfaces in S4 and Quaternions. Berlin [etc.]: Springer.
MLA način citiranja (8. izdanje)Burstall, Francis E., et al. Conformal Geometry of Surfaces in S4 and Quaternions. Springer.
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