Structural characterization of the lignin in the cortex and pith of elephant grass (Pennisetum purpureum) stems

1. Del Río, J.C.
2. Prinsen, P.
3. Rencoret, J.
4. Nieto, L.
5. Jiménez-Barbero, J.
6. Ralph, J.
7. Martínez, A.T.
8. Gutiérrez, A.