تحت الأرض نقص محذوف ulf wiger erlang اختراق اللوتس لطيف جدا
Ulf Wiger's InfoQ Profile
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ETX/D/XPS-01:002 Uen 1 Ulf Wiger Senior System Architect Strategic Product & System Management Ericsson Telecom AB Data Backbone & Optical Networks. - ppt download