@misc{ref35,
author = "",
title = "{G}ras {P}, {R}ey {C}, {M}arsan {O}, {S}arda {S}, {C}ombes {C}. {S}ynthesis and characterisation of hydrated calcium pyrophosphate phases of biological interest. {E}ur {J} {I}norg {C}hem. 2013;34:5886--95.",
}