van Weeghel, S. (2024) “Reflections on Separate Enterprise vs. Formulary Apportionment”, in Kukulski, Z. and Sęk, M. (eds.) Challenges of Contemporary Tax Law: Jubilee Book Dedicated to Professor Włodzimierz Nykiel. Volume II. Poland: Lodz University Press, pp. 351–359. doi:10.18778/8331-399-3.28.