Zair, Nicholas. 2012. The Reflexes of the Proto-Indo-European Laryngeals in Celtic. Leiden: Brill.
@book{jacquesestimative-zair12celtic, author = {Zair, Nicholas}, publisher = {Leiden: Brill}, title = {The Reflexes of the Proto-Indo-European Laryngeals in Celtic}, year = {2012} }