Lewins, Jeffery <br/><br/>
Importance, the adjoint function :  the physical basis of the variational and perturbation theory in transport and diffusion problems / 
by Jeffery Lewins 
 - Oxford :  Pergamon Press,  1965 
 - xxii, 172 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 161-168 
<br/><br/><label>ISBN: </label> £ 3.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport theory<br/>Diffusion<br/>Calculus of variations<br/>Perturbation (Mathematics)
<br/><br/><label>Dewey Class. No.: </label>533.13