.authors {  font-family: "Times New Roman", Times, serif; font-style: normal; text-align: left; margin-top: 12pt}
.reference {  font-family: Arial, Helvetica, sans-serif; font-style: normal; text-indent: 0cm; text-align: left; margin-left: 1cm}
.fondo {  background-color: #FFFFFF; background-image: url(Images/fondo.jpg); text-color: #000000}