Koppers, Bertha Th. 1960. Negative conditional sentences in Greek and some other Indo-European languages. (Published 1959; The Hague: Pier Westerbaan, University of Utrecht).
@phdthesis{kortmannadverbial-Koppers1960,
author = {Koppers, Bertha Th.},
note = {Published 1959; The Hague: Pier Westerbaan},
school = {University of Utrecht},
title = {Negative conditional sentences in Greek and some other Indo-European languages},
year = {1960}
}