Rzemieniak, Magdalena. (2015). «Measuring the effectiveness of online advertising campaigns in the aspect of e-entrepreneurship» Procedia Computer Science in: International Conference on Communication, Management and Information Technology (ICCMIT 2015). 65: 983. doi:10.1016/j.procs.2015.09.063. ISSN1877-0509..
Rzemieniak, Magdalena. (2015). «Measuring the effectiveness of online advertising campaigns in the aspect of e-entrepreneurship» Procedia Computer Science in: International Conference on Communication, Management and Information Technology (ICCMIT 2015). 65: 983. doi:10.1016/j.procs.2015.09.063. ISSN1877-0509..