TY  - RPRT
TI  - Syntactic categories in early child language: some additional data.
AU  - M Ihns
AU  - L B Leonard
PY  - 1988
DO  - 10.1017/s0305000900012630
UR  - https://pubmed.ncbi.nlm.nih.gov/3198729/
ID  - 3198729
ER  -