@article{159204,
author = {Agnew, C. R.},
title = {{The insufficiency of the ophthalmoscope as the
sole test of errors of refraction}},
journal = {{Transactions of the American Ophthalmological
Society}},
year = 1880,
pages = 15,
url = {https://vlp-new.ur.de/records/lit35266}
}