@misc {TN_libero_mab2,
author = { Ratonyi, Robert },
title = { Telephone industry diversification: Leanring from Contel },
publisher = {Emerald},
isbn = {0094-064X},
keywords = { General Medicine },
year = {1986},
url = { http://slubdd.de/katalog?TN_libero_mab2 }
}
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