Urones, J. G., Díez, D., Marcos, I. S., Basabe, P., Lithgow, A. M., Moro, R. F., . . . Escarcena, R. (1995). The use of acyclic monoterpenes in the preparation of β-pyrones: Synthesis of the right-hand fragment of Usneoidone E. Tetrahedron, 51(12), 3691-3704. https://doi.org/10.1016/0040-4020(95)00084-L

Urones, Julio G., David Díez, Isidro S. Marcos, Pilar Basabe, Anna M. Lithgow, Rosalina F. Moro, Narciso M. Garrido, and Ricardo Escarcena. "The Use of Acyclic Monoterpenes in the Preparation of β-pyrones: Synthesis of the Right-hand Fragment of Usneoidone E." Tetrahedron 51, no. 12 (1995): 3691-3704. https://doi.org/10.1016/0040-4020(95)00084-L.

Urones, Julio G., et al. "The Use of Acyclic Monoterpenes in the Preparation of β-pyrones: Synthesis of the Right-hand Fragment of Usneoidone E." Tetrahedron, vol. 51, no. 12, 1995, pp. 3691-3704, https://doi.org/10.1016/0040-4020(95)00084-L.