Net energy value of non-starch polysaccharide isolates (sugarbeet fibre and commercial inulin) and their impact on nutrient digestive utilization in healthy human subjects - Castiglia-Delavaud, C.; Verdier, E.; Besle, J.M.; Vernet, J.; Boirie, Y.; Beaufrere, B.; Baynast, R.; Vermorel, M. (British journal of nutrition, 1998)