Clean way for many to many relation in doctrine - doctrine-orm

Question

Is there a good way for managing this kind of relation in doctrine:
class Picture
{
private $id;
private $name;
}
class Product
{
private $id;
private $pictures;
}
class Article
{
private $id;
private $pictures;
}
Everytime i read many to many article (even here) i end with
class Picture
{
private $id;
private $name;
/**
*
* #ORM\ManyToMany(targetEntity="Product", mappedBy="pictures")
*/
private $products;
/**
*
* #ORM\ManyToMany(targetEntity="Article", mappedBy="pictures")
*/
private $articles;
}
class Product
{
private $id;
/**
* #var arraycollection
*
* #ORM\ManyToMany(targetEntity="Picture", inversedBy="products")
*/
private $pictures;
}
class Article
{
private $id;
/**
* #var arraycollection
*
* #ORM\ManyToMany(targetEntity="Picture", inversedBy="articles")
*/
private $pictures;
}
What is bother me is :
in the scope of one article there is no sense that my entity Picture have a attribute $products
in the scope of one product there is no sense that my entity Picture have a attribute $articles
So yea i can remove my attributes ($products and $articles) but in that case how i write :
Find all picture associated to a article
SELECT *
FROM picture
INNER JOIN article_picture ON picture.id = article_picture.picture_id
I hope i'm clear and Thank you