I'm a new python developer. Now I'm learning Django and I'm having some troubles.

In Java for example, I can have an 1 to N relation, like this:

```
public class Son(){ 
   // some things
}

public class Father(){ 
   Son son[]; 
   // some things
}

```

But, if I need to model it in Django, how i can do that? 

I tried the code bellow, but it provides only 1 to 1 relation:

```
class Father: 
    father = models.ForeignKey('Son')

```

How can I do that?