Publisher
Springer Berlin Heidelberg
Reference12 articles.
1. M. Bucklers: Brit. J. Ophthalmol. 37, 587 (1953)
2. H.W. Hofstetter: Am. J. Optom. Arch. Am. Acad. Optom. 31, 161 (1954)
3. F.A. Young, R.J. Beattie, F.J. Newby, and M.T. Swindal: Am. J. Optom. Arch. Am. Acad. Optom. 31, 111 (1954) and 31, 192 (1954)
4. M.J. Hirsch: The refraction of children; in Vision of Children, ed. By M.J. Hirsch and R.E. Wick ( Chilton, Philadelphia 1963 )
5. M.J. Hirsch: Am. J. Optom. Arch. Am. Acad. Optom. 30, 135 (1953)