Butcher, W. W.; Westheimer, F. H. (May 1955). "The Lanthanum Hydroxide Gel Promoted Hydrolysis of Phosphate Esters". Journal of the American Chemical Society. 77 (9): 2420–2424. doi:10.1021/ja01614a018.
Harvan, Donald J.; Hass, J. Ronald; Busch, Kenneth L.; Bursey, Maurice M.; Ramirez, Fausto; Meyerson, Seymour (November 1979). "Direct observation of the monomeric metaphosphate anion". Journal of the American Chemical Society. 101 (24): 7409–7410. doi:10.1021/ja00518a050.
Regitz, Manfred; Maas, Gerhard (1981). "Short-lived phosphorus(V) compounds having coordination number 3". Organic Chemistry. 97: 71–120. doi:10.1007/BFb0037041.