Quantum field theory of many-body systems : from the origin of sound to an origin of light and electrons 2026-02-16T15:30:55+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Wen, Xiao-Gang (Oxford graduate texts, 2007)