García Alcázar, Ana María,
Firma digital, certificado electrónico y factura electrónica - 1 online resource : illustrations. - Ra-Ma empresa . - Empresa (Ra-Ma Editorial) .
9788499649917
Digital signatures--Spain.
Electronic invoices--Spain.
Electronic contracts--Spain.
Electronic books.
346.022
Firma digital, certificado electrónico y factura electrónica - 1 online resource : illustrations. - Ra-Ma empresa . - Empresa (Ra-Ma Editorial) .
9788499649917
Digital signatures--Spain.
Electronic invoices--Spain.
Electronic contracts--Spain.
Electronic books.
346.022