The List of Conservation topics is a link page for the conservation of both the natural environment and the built environment. There are four sections so far:
... the following places of articulation:
Velar (soft palate[?]) (k, kh, g, gh, n as in ing)
Palatal (hard palate[?]) (c, ch, j, jh, ~n)
Retroflex[?] (roughly the place ...