Strazdas, Rolandas, and Rimvydas Bareika. “Improvement of Product Innovations Development Models”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 2, no. 2 (April 30, 2010): 97-103. Accessed December 29, 2024. https://mma.vgtu.lt/index.php/MLA/article/view/10105.