Found a new source in english:
http://cointelegraph.com/news/one-coin-much-scam-onecoin-exposed-as-global-mlm-ponzi-scheme
Same artikle translatet to german:
https://blog.botnetzprovider.de/2015/10/14/onecoin/
In both coin Companys Mrs. Dr. Ruja Ignatova is the Managerin - OneCoin and AurumGoldCoin.
AU seems to be a child from the first days of AurumGoldCoin. (I think this may "aucoin" better explain - if he have the courage).