Black Uyless <br/><br/>
PPP and L2TP remote access communications 

 -  2000 
<br/><br/><label>Standard No.: </label>8113 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6,8(B),277, P0