RAI, H.C., K.M. ISHWAR, ABHA SINHA, and KUMAR SANJAY. 2010. “Alkoxy Boron-Bridged 14-Membered Macrocyclic Compounds of Nickel(II) With 1,1,8,8-Tetraalkoxy-1,8-Dibora-4,5,11,12-Tetrafuryl- 3,6,10,13-Tetraaza-2,7,9,14-Tetraoxacyclotetradeca-3,5,10,12-Tetraene”. Asian Journal of Chemistry 22 (6):4411-14. https://asianpubs.org/index.php/ajchem/article/view/16751.