共 12 条
[1]
Evans MW, 1940, J AGRIC RES, V61, P0481
[2]
KLEINENDORST A, 1957, JAARB I BIOL SCHEIK, V9, P39
[5]
LANGER R. H. M., 1954, Journal of the British Grassland Society, V9, P275
[6]
LANGER R. H. M., 1959, Journal of Agricultural Science, V53, P145, DOI 10.1017/S0021859600020207