Sequeira, A.; Hamilton, Walter C. (September 1967). "Hydrogen Bonding in Phosphonium Iodide: A Neutron-Diffraction Study". The Journal of Chemical Physics47 (5): 1818–1822. doi:10.1063/1.1712171. Bibcode: 1967JChPh..47.1818S.
Sequeira, A.; Hamilton, Walter C. (September 1967). "Hydrogen Bonding in Phosphonium Iodide: A Neutron-Diffraction Study". The Journal of Chemical Physics47 (5): 1818–1822. doi:10.1063/1.1712171. Bibcode: 1967JChPh..47.1818S.