Locally pro-p contraction groups are nilpotent
H. Glöckner, G.A. Willis, Journal Für Die Reine Und Angewandte Mathematik 781 (2021) 85–103.

Real and p-adic Lie algebra functors on the category of topological groups.
H. Glöckner, Pacific Journal of Mathematics 203 (2002) 321–368.