Interorganizational cooperation in it project management – collaborative project management / Jarosław POLAK, Przemysław WÓJCIK // W: Project management development – practice and perspectives : fifth international scientific conference on Project management in Baltic countries : April 14–15, 2016, Riga : conference proceedings. — [Latvia : s. n.], cop. 2016. — (Project Management Development – Practice and Perspectives ; ISSN 2256-0513). — ISBN: 978-9934-14-849-1. — S. 260–269. — Bibliogr. s. 268–269, Abstr.. — Dostęp również online: {http://balticpmconference.eu/sites/default/files/conference-files/2016_001-006_Conf_proceeding_2016_ar_vaku_final_22.04.2016%20%281%29.pdf} [2016-04-19]