Slawinski Michael A Et Al <br/><br/>
Wavefronts and Rays As Characteristics and Asymptotics Third Edition 

 -  World Scientific  WSPC  2020 
<br/><br/><label>ISBN: </label>9789811226472 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics