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//Get posts of another post type connected via Metabox plugin (Rilwis)
$args = array('post_type' => 'custom_post_type', 'meta_query' => array( array('key' => 'custom_field_key') ) );
$posts_with_connection = get_posts($args);
if ($posts_with_connection) {
	echo '<section class="class-name"><h1>Heading</h1><ul>';
	foreach ( $posts_with_connection as $post_with_connection ) : setup_postdata( $post_with_connection );
		$posts_connected2current = rwmb_meta('custom_field_key','type=post&multiple=true',$post_with_connection->ID);
		if (in_array($post->ID,$posts_connected2current)) {
			echo '<li><a href="'.get_permalink($post_with_connection->ID).'">'.get_the_title($post_with_connection->ID).'</a></li>';
		}
	endforeach;
	echo '</ul></section>';
	wp_reset_postdata();
}

//needs Metabox add-a-metabox wrapper code
,array(
	'name' => 'Name'
	,'id' => $prefix_works . 'connectedpubs'
	,'type' => 'post'
	,'post_type' => 'publication'
	,'multiple' => true
	,'field_type' => 'select_advanced'
	,'size' => 70
	,'placeholder' => 'Type in something'
	// ,'query_args' => array(
	// 	'post_status' => 'publish',
	// 	'posts_per_page' => - 1,
	// )
	,'js_options' => array( //see http://select2.github.io/select2/#documentation
		'width' => 400
	)
)