Froman, nanny <br/><br/>
Physical problems solved by the phase-integral method 

 - UK  Cambridge University  2002 
 - xi,214p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Mathematical Approximation<br/>Quantum Mechanics
<br/><br/><label>Dewey Class. No.: </label>530.12  / F93P