TY  - JOUR 
T1  - Synthesis of 15N-enriched urea (CO(15NH2)2) from 15NH3, CO, and S in a discontinuous process
JO  - Brazilian Journal of Chemical Engineering
A1  - Sant Ana Filho, C. R.
A1  - Rossete, A. L. R. M.
A1  - Tavares, C. R. O.
A1  - Prestes, C. V.
A1  - Bendassolli, J. A.
SN  - 0104-6632
UL  - 10.1590/S0104-66322012000400011
VL  - 29 
Y1  - 2012
PB  - Brazil 
ER  -