Synthesis and Investigation of Molecular and Crystal Structure of Coordination Polymer of Neodime Nitrate(III) With 4,4,10,10-Tetramethyl-1,3,7,9-Tetraazospiro[5.5]undecan-2,8-Dion (spirocarbon – SK). Khark. Univ. Bull. Chem. Ser. 2012, No. 21, 319-326. https://doi.org/10.26565/2220-637X-2012-21-37.