@ARTICLE {TIAN: 1994a, title = {An index for assessing the quality of plant residues and evaluating their effects on soil and crop in the (sub-) humid tropics}, author = {Tian, G. and Brussaard, L. and Kang, B. }, journal = {Applied Soil Ecology}, year = {1994}, volume = {2}, pages = {25--32}, issn = {0929-1393}, }