Sebudandi, Christophe <br/><br/>
On the convergence of semi-anaytical ray tracing between two points 
/ Sebudandi Christophe 
. - Namur  : Facultés Universitaires ND de la paix, 1992
. - 11 f.  ; 30 cm. 
<br/><br/>Bibliogr. 
<br/><br/><label>Universal Decimal Class. No.: </label>519.28