(2015) „The Fezouata fossils of Morocco; an extraordinary record of marine life in the Early Ordovician”. Journal of the Geological Society172 (5), 2015–017. o. DOI:10.1144/jgs2015-017. ISSN0016-7649.
(2015) „The Fezouata fossils of Morocco; an extraordinary record of marine life in the Early Ordovician”. Journal of the Geological Society172 (5), 2015–017. o. DOI:10.1144/jgs2015-017. ISSN0016-7649.