Open Cloud eXchange (OCX): A Pivot for Intercloud Services Federation in Multi-provider Cloud Market Environment. - Yuri Demchenko; Cosmin Dumitru; Ralph Koning; Cees de Laat; Taras Matselyukh; Sonja Filiposka; Migiel de Vos; Daniel Arbel; Damir Regvart; Tasos Karaliotas; Kurt Baumann (IC2E, 2015)