Duenki Ann. <br/><br/>
ANNOS:Analysis of a Communication System.[Praca doktorska] / 
Duenki Ann. 
 - Zürich :  1981. 
 - [2],91,[6],bibliogr. ;  24 cm. 
<br/><br/> Zürich,Swiss Federal Institute of Technology. 
<br/><br/><label>Universal Decimal Class. No.: </label>621.391