Brilleslyper, Michael, Michael J. Dorff, and Jane M. McDougall. 2014. Explorations in Complex Analysis. Vol. Classroom Resource Materials. Washington: Mathematical Association of America. http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3039362620002418&institutionId=2418&customerId=2415.
Fenchel, Werner. 1989. Elementary Geometry in Hyperbolic Space. Vol. De Gruyter Studies in Mathematics. Berlin: De Gruyter. http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3039372760002418&institutionId=2418&customerId=2415.
Kisil, Vladimir V. 2012. Geometry of Mobius Transformations: Elliptic, Parabolic and Hyperbolic Actions of SL2®. Singapore: World Scientific Publishing Company. http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3039389340002418&institutionId=2418&customerId=2415.
Mumford, David, Caroline Series, and David Wright. 2002. Indra’s Pearls: The Vision of Felix Klein. Cambridge: Cambridge University Press. http://eu.alma.exlibrisgroup.com/view/action/uresolver.do?operation=resolveService&package_service_id=3039362610002418&institutionId=2418&customerId=2415.
Needham, Tristan. 1998. Visual Complex Analysis. Oxford: Clarendon Press.