Reflective anisotropic hyperbolic lattices of rank $4$
  A hyperbolic lattice is called \textit{$1.2$-reflective} if the subgroup of its automorphism group generated by all $1$- and $2$-reflections is of finite index. The main result of this article is a complete classification of $1.2$-reflective maximal anisotropic lattices of rank $4$. 
Nikolay V. Bogachev
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