Bott, S., ROBINSON, G., HUNTER, W., BOTT, S., & ATWOOD, J. (1987). The interaction of group III metal alkyls with crown ethers. The synthesis and structure of [Ga(CH3)3]2[dibenzo18-crown-6] and [Al(CH3)3]2[dicyclohexano-18-crown-6]. Journal of Organometallic Chemistry, 326(1), pp. 9-16. doi:10.1016/0022-328X(87)80118-3

Bott, Simon, GH ROBINSON, WE HUNTER, SG BOTT, and JL ATWOOD. "The Interaction of Group III Metal Alkyls With Crown Ethers. The Synthesis and Structure of [Ga(CH3)3]2[dibenzo18-crown-6] and [Al(CH3)3]2[dicyclohexano-18-crown-6]." Journal of Organometallic Chemistry 326, no. 1 (1987): 9-16.

Bott, Simon, et al. "The Interaction of Group III Metal Alkyls With Crown Ethers. The Synthesis and Structure of [Ga(CH3)3]2[dibenzo18-crown-6] and [Al(CH3)3]2[dicyclohexano-18-crown-6]." Journal of Organometallic Chemistry 326.1 (1987): 9-16.