https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/42890/virtuoso-layout-migrate-flow-works-successfully-but-the-migration-result-is-wrong

https://community.cadence.com/cadence_blogs_8/b/cic/posts/virtuoso-layout-migrate-614-enhancements

http://pdf2.solecsy.com/569/972b0b3b-df34-4f6a-9386-7bc7653a1dd9.pdf

https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/32397/design-migration-tool

migrate a layout from one foundry to another

http://www.sfu.ca/adm/skill/

https://wiki.to.infn.it/vlsi/workbook2/skill

https://www.thecadforums.com/threads/search-and-replace-in-skill.33128/

replace instance