@article{PPN591061406+DMDLOG_0011, title = {U.}, booktitle = {Biblioteca mar\'\i tima espa\~nola Tomo 2}, series = {GDML\_Books}, publisher = {Calera}, address = {Madrid}, year = {1851}, pages = {749}, url = {http://dml.mathdoc.fr/item/PPN591061406+DMDLOG_0011} }
(éd.). U., dans Biblioteca marítima española Tomo 2, GDML_Books, (1851), p. 749. http://gdmltest.u-ga.fr/item/PPN591061406+DMDLOG_0011/