@book{ BA29457963,
author = "Oinas, Felix J.",
title = "Basic course in Estonian",
publisher = "Curzon",
year = "1997",
series = "Uralic and Altaic series / series introduction by Denis Sinor",
number = "v. 54",
URL = "https://ci.nii.ac.jp/ncid/BA29457963"
}