Function spaces and potential theory 2026-02-16T15:01:04+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Adams, David R., 1941-; Hedberg, Lars Inge, 1935- (Grundlehren der mathematischen Wissenschaften : a series of comprehensive studies in mathematics ;, 1996)