Narasimhan, Raghavan <br/><br/>
Analysis on real and complex manifolds / 
Raghavan Narasimhan 
 - 2nd ed. 
 - Paris :  Masson,  1973 
 - 264 p. ;  23 cm. 
<br/><br/>p.242-244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differentiable manifolds<br/>Complex manifolds<br/>Differential operators