
http://www.tandfonline.com/doi/pdf/10.1080/09692290.2016.1268189

https://www.energy.senate.gov/public/index.cfm/files/serve?File_id=77F2C6DE-500B-4AE1-8C45-170B2DEFB78A

https://sciencespo.hal.science/hal-03874282v1/file/2022_zhuravskaya_guriev_markevich_new_russian_economic_history.pdf