Bogoliubov, N. N. <br/><br/>
A method for studying model Hamiltonians :  a minimax principle for problems in statistical physics / 
by N. N. Bogolyubov, Jr. ; Translated and edited by P. J. Shepherd 
 - Oxford :  Pergamon Press,  1972 
 - x, 170 p. ;  22 cm. 
<br/><br/>Bibliography: p. 165-167. 
<br/><br/><label>ISBN: </label>008016742X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistical physics<br/>Fermions<br/>Hamiltonian operator