A Note on the Rapanui Lunar Calendar
  This paper is dedicated to the research of secrets of Easter Island (Rapa Nui), a remote plot of land in the Pacific; the article contains not only ethnological data, but also some results on the archaeoastronomy. This author examines both lunar calendar lists presented on the Mamari tablet as well as on a panel at Ahu Raai. Calendar records on different tablets have been investigated, too. 
Sergei Rjabchikov
physics.hist-ph