Mikkelsen, Christian Juul <br/><br/>
Lattice theoreti and logical aspects of elementary topoi 
Christian Juul Mikkelsen 
 - Aarhus  Universitet Aarhus  1976 
 - 122 p  fig  20 cm 
 - Various publications series  25 .
<br/><br/> Lucrarea este multigrafiata  Contine bibliografie