TY - RPRT TI - Numerical abstraction in infants: another look. AU - K S Mix AU - S C Levine AU - J Huttenlocher PY - 1997 DO - 10.1037//0012-1649.33.3.423 UR - https://pubmed.ncbi.nlm.nih.gov/9149921/ ID - 9149921 ER -