@article{ref1,
title="Functional problems of telescopic spectacles in the driving task",
journal="Transactions of the American Ophthalmological Society",
year="1974",
author="Keeney, A. H. and Weiss, S. and Silva, D.",
volume="72",
number="",
pages="132-138",
abstract="Abstract unavailable.",
language="",
issn="0065-9533",
doi="",
url="http://dx.doi.org/"
}