The books to which direct reference is made are marked with an asterisk.
Only persons who speak are included, except a few marked with asterisk.
The best stories are indicated by an asterisk before the title of the story.
An asterisk before the name of an author indicates that he is not an American.
In this list the more common of the elements are marked with an asterisk.
In working it for the 6th time, it will be necessary to work from the asterisk thus.
The publications no longer available are marked with an asterisk.
References marked with an asterisk were not seen by the author.
As he indicates by an asterisk, he has not seen the Catalogo.
What do you notice with regard to the words marked with an asterisk?