@inbook{inbook0c113cf3,
title   = {Availability of P from phosphate rock, thermophosphate and triple superphosphate after different incubation periods},
author = {Muraoka, Takashi and Boaretto, Antonio Enedi and Scivittaro, Walkyria Bueno and Brasil, Edson Carvalho},
year = {2002},
publisher = {IAEA},
journal   = {Assessment of soil phosphorus status and management of phosphatic fertilisers to optimise crop production}
}