https://www.citrix.com/blogs/2014/05/28/a-video-is-the-next-best-thing-hdx-with-framehawk/

A useful presentation by "Scott & Scott" on Microsoft SPLA Licensing.

A good article on how to use VMware workstation to upgrade the VMware tools on your PVS vDisk. Possible alternative to using Winimage etc if Citrix environment is run over Vsphere.

https://www.virtuallyboring.com/citrix-pvs-use-vmware-workstation-to-upgrade-vmtools/

http://www.jasonsamuel.com/2015/09/18/how-to-deploy-microsoft-azure-mfa-ad-connect-with-citrix-netscaler-gateway/