@article {5521,
	title = {Co-Productivity as a New Value Theory in Value Chain Analysis},
	journal = {Central European Management Journal},
	volume = {28},
	year = {2020},
	month = {2020},
	pages = {52-65},
	issn = {2658-0845 },
	doi = {10.7206/cemj.2658-0845.15},
	author = {Adam Noga and Jarz{\k e}bowski, Sebastian and Maci{\k a}g, Piotr}
}
