Deletion of Deviation from proportionality (2nd nomination)

Comment: to Proportional_representation#Measuring_proportionality. Incdices of disproprortionality are well-known in the context of assessing the quality of proportional-representation voting systems; the Gallagher Index is another example. Deviation from proportionality is discussed in published papers like http://web.iaincirebon.ac.id/ebook/moon/PoliticsMatters/sage%20publications/mapping%20the%20indices%20of%20seats%20votes%20disproportionality.pdf, https://www.tcd.ie/Political_Science/staff/michael_gallagher/ElectoralStudies1991.pdf, http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199287741.001.0001/acprof-9780199287741-chapter-5, and the ref http://eprints.lse.ac.uk/709/1/BritishAMSSystems04.pdf from the article. These papers (and others found with a simple Gscholar search) show the topic to be verifiable. There ''may'' be enough secondary discussion to pass notability, so a '''Keep''' would be OK with me, too. Per  and , verifiable information should be preserved rather than deleted. Deviation from proportionality is a measure of proportionality, so  Proportional_representation#Measuring_proportionality is a natural target. The topic is a plausible search term, so a redirect is warranted, too
Stance: merge
Cited policy: Wikipedia:Deletion policy (WP:ATD||WP:PRESERVE)