Netreba, E. E. “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)”. Kharkiv University Bulletin. Chemical Series, no. 21, Dec. 2012, pp. 319-26, doi:10.26565/2220-637X-2012-21-37.