D. Angella and H. Kasuya, “Cohomologies of deformations of solvmanifolds and closedness of some properties”, NWEJM, no. 3, pp. 73–104, Oct. 2023, Accessed: Nov. 24, 2024. [Online]. Available: https://nwejm.univ-lille.fr/index.php/nwejm/article/view/54