Peter Nicolas & Mark Strong (University of Washington). The Geography of Love, Third Edition (2013).
"With 15 years' experience as a geographic-information systems or
mapping specialist, Strong scoured census records and maps for
information that brought election results and gay rights together. Nicolas, meanwhile, brought his legal mind to what was an exhaustive
research effort, as well as a bit of insider knowledge. In 1992, as a
21-year-old graduate student at the University of Michigan, he was
elected to the Ann Arbor City Council and voted on an ordinance
extending domestic-partner benefits to city employees. As a law
professor who teaches a class each year on GLBT rights and the
constitution, Nicolas said he found domestic partnership registries in
places 'where you didn't think they existed.'"
—Lornet Turnbull, Seattle Times