Gill, Timothy M., et al. “Ideology, Ceremony and Calendar in Pre-Contact Hawai‘i: Astronomical Alignment of a Stone Enclosure on O‘ahu Suggests Ceremonial Use During the Makahiki Season”. Waka Kuaka, vol. 124, no. 3, Oct. 2015, pp. 243-68, doi:10.15286/jps.124.3.243-268.