sm0ckr·11 anni fa·discussCute story, but I don't think this is an example of "huh" as a "repair initiator" (i.e. "what did you say?") that the paper investigates.
sm0ckr·11 anni fa·discussThe Russian example in the paper is something like "a?". Part of their hypothesis that makes "huh" a word is that it is calibrated to the phonetic system of its language.
sm0ckr·11 anni fa·discussI'm not usually a stickler for grammar/usage but this title needs some hyphens!