N. L. Shukla, S. K. Mishra, R. K. Shukla. 1997. “Electron Paramagnetic Resonance Study of 2- Diethylamino Ethanolato- Trifluoroacetato Copper (II) - Tetramer”. Journal of International Academy of Physical Sciences 1 (3-4):203-12. https://www.iaps.org.in/journal/index.php/journaliaps/article/view/694.