Beckers, J. <br/><br/>
Weyl kinematical groups of electromagnetic and energy-momentum tensors 
/ J.Beckers, S. Sinzinkayo 
. - Berlin  : Stringer, 1984
. - 3 f.  ; 29 cm. 
<br/><br/> Communication donnée à l'international colloquiumon "group- theoritical methods in physics, Trieste (Italy), 1983. 
<br/><br/><label>Source: </label> Don 
<br/><br/><label>Universal Decimal Class. No.: </label>530.01