Holy Smoke in Medieval Funerary Rites: Chemical Fingerprints of Frankincense in Southern Belgian Incense Burners Baeten, Jan ; Deforce, Koen ; Challe, Sophie ; De Vos, Dirk ; Degryse, Patrick Abstract Publication: PLoS ONE Pub Date: November 2014 DOI: 10.1371/journal.pone.0113142 Bibcode: 2014PLoSO...9k3142B