Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iturralde-Vinent M. A.,"Las breas de San Felipe, a quaternary fossiliferous asphalt seep near Marti (Matanzas Province, Cuba)",Caribb. J. Sci.,,,2000,36,,300,https://cir.nii.ac.jp/crid/1370861707125061527,