From deep TLS validation to ensembles of atomic models built from elemental motions. Addenda and corrigendum

Some key parts of the algorithm for interpretation of TLS matrices in terms of elemental atomic motions and corresponding ensembles of atomic models described in the article by Urzhumtsev et al. [(2015) Acta Cryst. D71, 1668–1683] are clarified and developed, and a reference on a wrong model is corrected.