Comparison of in situ degradation of cell-wall constituents, nitrogen and nitrogen linked to cell walls for fresh lucerne and 2 lucerne silages J. Aufrère, D. Boulberhane, D. Graviou and C. DemarquillyAnn. Zootech., 43 2 (1994) 125-134DOI: https://doi.org/10.1051/animres:19940202