@article{ref1,
title="A letter of Mr. Isaac Newton, professor of the mathematicks in the University of Cambridge; containing his new theory about light and colors: sent by the author to the publisher from Cambridge, Febr. 6. 1671/72; in order to be communicated to the R. Socie",
journal="Philosophical transactions of the Royal Society of London (1665)",
year="1671",
author="Newton, Isaac",
volume="6",
number="80",
pages="3075-3087",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0370-2316",
doi="",
url="http://dx.doi.org/"
}