@inbook {jubilaeum650-1764, title = {Subjektivit{\"a}t als Erkenntnismedium und ihre Krisen im Forschungsproze{\ss}}, booktitle = {P{\"a}dagogische Jugendforschung}, year = {1989}, note = {Export Filemaker Zeile 1764}, pages = {81{\textendash}93}, publisher = {Leske + Budrich}, organization = {Leske + Budrich}, address = {Opladen}, author = {Mario Erdheim}, editor = {Wilfried Breyvogel} }