Jakub Flotyński and Dariusz Rumiński participated in an international conference The 5th Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS'14 – “Technological Innovation for Collective Awareness Systems”, which took place in Lisbon (Portugal) from April 7 to April 9, 2014. Jakub Flotyński presented a paper entitled “Multi-platform Semantic Representation of Interactive 3D Content” (authors: Flotyński, J., and K. Walczak). Dariusz Rumiński presented a paper entitled “CARL - A Language for Building Contextual Augmented Reality Environments” (authors: Rumiński, D., and K. Walczak).