Decarbonization of Estonian ferry lines – Challenges and opportunitiesOtsason, Riina; Thomasson, Tomi; Rahikainen, Jarkko; Tapaninen, UllaNAŠE MORE 2025 : Conference Proceedings2025 / p. 149-158 https://www.nasemore.com/wp-content/uploads/2025/09/NASE-MORE-2025_Conference-proceedings-1.pdf