Citation: Murtazoev, Alisher F.; Berdonosov, Peter S.; Aksenov, Sergey M.; Kuznetsov, Alexey N.; Dolgikh, Valery A.; Nelyubina, Yulia V.; Merlino, Stefano (2023). Polytypism of Ln(SeO3)(HSeO3)·2H2O compounds: synthesis and crystal structure of the first monoclinic modification of Nd(SeO3)(HSeO3)·2H2O, DFT calculations and order/disorder description.. Acta crystallographica Section B, Structural science, crystal engineering and materials, 79, pp. 176-183.