| the emergence and stability of groups in social networks || brand adventure emotion rixrewards.com leverage yook3.com || euro trip with samsung | rixrewards.co | rixrewards.com | yook3.com | ralph muellerschoen | latin-america |

| context: ||| Ellmer Group ||| Dr Ehrmann Agentur ||| Ruediger Koch ||| rixrewards.com |||