Wouters, EtienneEtienneWoutersVos, IlseIlseVos2021-10-212021-10-212013https://imec-publications.be/handle/20.500.12860/23403Converting an outdated library for UPF compliancy prior to a low-power physical design that uses retention flip-flopsProceedings paperhttp://www.synopsys.com/news/pubs/snug/2013/france/A1_Wouters_paper.pdf