The contributions mentioned in the text are:
Gaspar, J. M. (2021) New economic geography: history and debate. The European Journal of the History of Economic Thought, 28:1, 46-82, https://doi.org/10.1080/09672567.2020.1767671
Castro, S.B.S.D., Correia-da-Silva, J. & Gaspar, J.M. (2022) Economic geography meets Hotelling: the home-sweet-home effect. Economic Theory, 73, 183–209. https://doi.org/10.1007/s00199-020-01331-8
Gaspar, J. M., Garrido-da-Silva, L., Vasconcelos, P. B., Afonso, O. (2023) Local and global indeterminacy and transition dynamics in a growth model with public goods. Portuguese Economic Journal, 22, 271–314. https://doi.org/10.1007/s10258-022-00216-z