Speer, Eugene R. <br/><br/>
Generalized Feynman amplitudes / 
By Eugene R. Speer. 
 - Princeton, N.J. :  Princeton University Press,  1969. 
 - 120 p. 
 - Annals of Mathematics Studies  62 .
<br/><br/>Bibliogr. : p. 119-120 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical physics<br/>Quantum field theory