Errata to: An infinite series of compact non-orientable 3-dimensional space forms of constant negative curvature (Q1057519)

The paper gives the corrections of an inaccuracy in the author's paper [ibid. 1, No.3, 37-49 (1983; Zbl 0538.53050)] namely, in order to construct a non-orientable closed hyperbolic 3-manifold \(H^ 3/G\) the same polyhedron as for the hyperbolic space \(H^ 3\) is used, but having other identification sides. (It turned out that the group G generated by old identifications contains two non-equivalent point reflections and therefore the factor space \(H^ 3/G\) does not constitute a manifold).