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Collaboration and Technology: 20th International Conference, CRIWG 2014, Santiago, Chile, September 7-10, 2014, Proceedings

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Collaboration Technologies and Social Computing: 10th International Conference, CollabTech 2018, Costa de Caparica, Portugal, September 5-7, 2018, Proceedings

Collaboration and Technology: 21st International Conference, CRIWG 2015, Yerevan, Armenia, September 22-25, 2015, Proceedings