Multiple Silverlight Project Can Share Common DLL ?

Question

I have 3 different Silverlight Projects for 3 different Modules.

In each silverlight project, we will be adding reference dll which will be added in to their XAP file.

Eg -
System.Xml.Linq.dll
System.Windows.Controls.Input.dll

These dlls will be used in all the 3 silverlight projects.

By adding reference to these dll in each project, it will be present in all the 3 XAP files.

Is there a way to have these common dll in a seperate folder, so that these 3 silverlight projects can share them ?