and Vyacheslav V. Ivanov, “Sprachtypologie und die Rekonstruktion der gemeinindogermanischen Verschlüsse”. Phonetica 27 (1973): 150–156. Thomas V. Gamkrelidze and Vyacheslav V. Ivanov, Indo-European and the Indo-Europeans, translated by Johanna Nichols, 2 volumes. Berlin and New York: Mouton de Gruyter, 1995. Paul J. Hopper, Glottalized and murmured occlusives in Indo-European. Glossa 7:2:1973, 141-166. . Theo Vennemann, Grimm’s Law and loanwords. Transactions of the Philological Society 104:2:2006, 129-166. Indo-European linguistics