共 50 条
- [46] Developing breeding schemes for pasture based dairy production systems in Kenya I. Derivation of economic values using profit functions LIVESTOCK PRODUCTION SCIENCE, 2004, 88 (1-2): : 161 - 177
- [47] Homogeneous redox catalysts based on heteropoly acid solutions: I. Pilot testing of a catalyst and methyl ethyl ketone synthesis Zhizhina, E.G., 1600, Maik Nauka Publishing / Springer SBM (06): : 202 - 211