class MetaData:
    def __init__(self, name_of_author, name_of_publisher,
                 name_of_affilname, name_of_affiliation_city,
                 name_of_affiliation_country):
        self.name_of_author              = name_of_author
        self.name_of_publisher           = name_of_publisher
        self.name_of_affilname           = name_of_affilname
        self.name_of_affiliation_city    = name_of_affiliation_city
        self.name_of_affiliation_country = name_of_affiliation_country