🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiSvenskaEntityQ14731· pop 5Yrjö KivivirtaFinnish ski jumperMusic · MusicBrainzTypePersonCountryFIvia MusicBrainz · CC0Recent publications · Crossref5 total works indexedExpansive Learning at Work: Toward an activity theoretical reconceptualization · 2001 · cited 3,177xCorporate Social Responsibility and Firm Risk: Theory and Empirical Evidence · 2019 · cited 1,848xActivity theory and individual and social transformation · 1999 · cited 1,375xPreliminary criteria for the classification of Sjögren's syndrome. Results of a prospective concerted action supported by the European community · 1993 · cited 1,126xStudies of expansive learning: Foundations, findings and future challengesAvailable in 4 languagesDeutschFinnishNorwegianPolskivia Wikidata sitelinks · CC0