Cunha-Silva, L., Soares-Santos, P. C. R., Nogueira, H. I. S., Trindade, T., Klinowski, J., Rocha, J., & Almeida Paz, F. A. (2008). Poly[[aqua-μ(3)-picolinato-μ(2)-picolinato-dipicolinatopotassium(I)terbium(III)] 2.5-hydrate]. International Union of Crystallography.

Cunha-Silva, Luís, Paula C. R. Soares-Santos, Helena I. S. Nogueira, Tito Trindade, Jacek Klinowski, João Rocha, ja Filipe A. Almeida Paz. Poly[[aqua-μ(3)-picolinato-μ(2)-picolinato-dipicolinatopotassium(I)terbium(III)] 2.5-hydrate]. International Union of Crystallography, 2008.

Cunha-Silva, Luís, et al. Poly[[aqua-μ(3)-picolinato-μ(2)-picolinato-dipicolinatopotassium(I)terbium(III)] 2.5-hydrate]. International Union of Crystallography, 2008.