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Annales Universitatis Mariae Curie-Skłodowska, Sectio H Oeconomia > 2013 > 47 > 3 > 455-463
Journal of Product Innovation Management > 38 > 6 > 623 - 644
IEEE Engineering Management Review > 2017 > 45 > 2 > 19 - 24
IEEE Engineering Management Review > 2017 > 45 > 1 > 21 - 26
Multimedia Tools and Applications > 2014 > 71 > 1 > 119-157