At the Rapa Nui Rendezvous in Laramie, Wyoming in August of 1993, there were no less than three speakers who gave lectures on their investigations regarding the transport of moai in an erect position from the quarry at Rano Raraku to the ahu where they were to be placed.
von Saher, Herbert
"Austronesian Megalith Transport Today: No hypotheses, just facts-figures-photographs,"
Rapa Nui Journal: Journal of the Easter Island Foundation: Vol. 8
, Article 3.
Available at: https://kahualike.manoa.hawaii.edu/rnj/vol8/iss3/3