TY  - JA
AU  - Barnes,H.F.
TI  - Studies of fluctuations in insect populations  III. The gall midge, rhabdophaga heterobia H.L.W., on black maul variety of salix triandra at syston,         leicestershire, 1927-1933
PY  - 1934///
T2  - Journal of Animal Ecology
ER  -