<div dir="ltr">We offer this distillation of best practice in metrics-based research assessment so that researchers can hold evaluators to account, and evaluators can hold their indicators to account.<div><br><a href="http://www.nature.com/news/bibliometrics-the-leiden-manifesto-for-research-metrics-1.17351">http://www.nature.com/news/bibliometrics-the-leiden-manifesto-for-research-metrics-1.17351</a></div></div>