Incubation: Does it make a difference after graduation? Analysis from Portugal Daniel Ferreira Polónia Publication Book Title: Regional Helix Ecosystems and Sustainable Growth: The Interaction of Innovation, Entrepreneurship and Technology Transfer. Year of Publication: 2019 Identifiers ISBN: 2511-2023 ISBN Number: 978-3-030-47696-0 Other Numbers: cv-prod-id-580539 Alternative titles DOIGoogle ScholarBibTeXRIS Locators