Modification of soil structure 2026-02-15T16:21:50+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Bond, Roy Douglas; Dexter, A. R.; Emerson, W. W. (Wiley, 1978)