http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a minimax principle for problems in statistical physics
Bogoli͡ubov, N. N. (Nikolaĭ Nikolaevich)
by N. N. Bogolyubov, Jr. Translated and edited by P. J. Shepherd.
International series of monographs in natural philosophy ; v. 43