Holt, E. M., Alcock, N. W., Hendrixson, R. R., Malpass, G. D., Ghirardelli, R. G., & Palmer, R. A. (1981). Transition-metal–crown-ether complexes. III. Seven-coordinate Co^II in dinitratocobalt(II)–12-crown-4 and diaquacobalt(II) dinitrate–15-crown-5. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 37(5), 1080–1085. https://doi.org/10.1107/s0567740881005104

Holt, E. M., N. W. Alcock, R. R. Hendrixson, G. D. Malpass, R. G. Ghirardelli, and R. A. Palmer. “Transition-metal–crown-ether complexes. III. Seven-coordinate Co^II in dinitratocobalt(II)–12-crown-4 and diaquacobalt(II) dinitrate–15-crown-5.” Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 37, no. 5 (May 1, 1981): 1080–85. https://doi.org/10.1107/s0567740881005104.

Holt EM, Alcock NW, Hendrixson RR, Malpass GD, Ghirardelli RG, Palmer RA. Transition-metal–crown-ether complexes. III. Seven-coordinate Co^II in dinitratocobalt(II)–12-crown-4 and diaquacobalt(II) dinitrate–15-crown-5. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 1981 May 1;37(5):1080–5.

Holt, E. M., et al. “Transition-metal–crown-ether complexes. III. Seven-coordinate Co^II in dinitratocobalt(II)–12-crown-4 and diaquacobalt(II) dinitrate–15-crown-5.” Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, vol. 37, no. 5, International Union of Crystallography (IUCr), May 1981, pp. 1080–85. Crossref, doi:10.1107/s0567740881005104.

Holt EM, Alcock NW, Hendrixson RR, Malpass GD, Ghirardelli RG, Palmer RA. Transition-metal–crown-ether complexes. III. Seven-coordinate Co^II in dinitratocobalt(II)–12-crown-4 and diaquacobalt(II) dinitrate–15-crown-5. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. International Union of Crystallography (IUCr); 1981 May 1;37(5):1080–1085.