Döös M, Wilhelmson L, Madestam J, Örnberg Åsa. The Principle of Singularity: A Retrospective Study of How and Why the Legislation Process behind Sweden’s Education Act came to Prohibit Joint Leadership for Principals. NJCIE [Internet]. 2018 Nov. 2 [cited 2024 Nov. 21];2(2-3):39-55. Available from: https://journals.oslomet.no/index.php/nordiccie/article/view/2757