Friedman, Bernard <br/><br/>
Techniques in solving partial differential equations 

 - s.f.:   s.f.,   1950. 
 - 169 p.:   graf.;  
<br/><br/><label>Subjects--Topical Terms: </label><br/>PARTIAL DIFFERENTIAL EQUATIONS<br/>ALGEBRA LINEAL<br/>FUNCIONES (MATEMÁTICAS)<br/>ECUACION DE DIRAC