Scholarly Context Not Found: One in Five Articles Suffers from Reference Rot Klein, Martin ; Van de Sompel, Herbert ; Sanderson, Robert ; Shankar, Harihar ; Balakireva, Lyudmila ; Zhou, Ke ; Tobin, Richard Abstract Publication: PLoS ONE Pub Date: December 2014 DOI: 10.1371/journal.pone.0115253 Bibcode: 2014PLoSO...9k5253K