View and Download Link

I was able to do what I wanted.
It was enough just to create an object of the WP_Publication_Archive_Item class and call the method get_the_link () which returns the preview link and I created the get_the_download_link () method that returns the download link.

lib/class.publication-markup.php:

/**
* Get the file open link for the current publication.
*
* @return string Download link.
*
* @see WP_Publication_Archive::get_open_link()
*/
public function get_the_link() {
    return WP_Publication_Archive::get_open_link( $this->ID );
}

/**
* Get the file open link for the current publication.
*
* @return string Download link.
*
* @see WP_Publication_Archive::get_download_link()
*/
public function get_the_download_link() {
    return WP_Publication_Archive::get_download_link( $this->ID );
}

view page:

$obj = new WP_Publication_Archive_Item(get_the_ID());
<a href="<?php echo $arquivo->get_the_link(); ?>" target="_blank">view</a>
<a href="<?php echo $arquivo->get_the_download_link(); ?>" target="_blank">download</a>