Carlos Alves, Andreas Karageorghis, Vitor Leitão, Svilen Valtchev <br/><br/>
Advances in Trefftz Methods and Their Applications 

 -  Springer  Springer  2020 
<br/><br/><label>ISBN: </label>9783030528041 
<br/><br/><label>Source: </label>EBOOK