@inbook{2011,<br/><span class="tab"></span> url={http://dx.doi.org/10.1017/cbo9780511782077.034},<br/><span class="tab"></span> DOI={10.1017/cbo9780511782077.034},<br/><span class="tab"></span> booktitle={Patrick Moore’s Data Book of Astronomy},<br/><span class="tab"></span> publisher={Cambridge University Press},<br/><span class="tab"></span> year={2011},<br/><span class="tab"></span> month=feb,<br/><span class="tab"></span> pages={517–525} }