Tiunov, A.V.; Kirillova, I.V. 2010. Stable isotope (13C/12C and 15N/14N) composition of the woolly rhinoceros Coelodonta antiquitatis horn suggests seasonal changes in the diet. Rapid Comminications in Mass Spectometry 24 (21): 3146-3150. { copied = true; setTimeout(() => copied = false, 10000); }).catch(err => { console.error('Failed to copy:', err); }); " type="button" :class="copied ? 'bg-secondary border-secondary' : 'border-primary hover:bg-primary'" class="group lg:min-w-64 flex items-center justify-between gap-5 border border-solid px-5 py-2 cursor-pointer transition-colors"> PDF download available