Measurement of a Hierarchy as an Organizational Structure Feature. - Katarzyna Tworek; Marian Hopej; Janusz Martan (ISAT (4), 2016)

Into Organizational Structure Simplicity. - Katarzyna Tworek; Marian Hopej; Janusz Martan (ISAT (3), 2017)

The cohesive management: the football lesson for high-tech organizations. - Anna Zgrzywa-Ziemak; Marian Hopej; Joanna Zimmer (J. Inf. Telecommun., 2024)