Hey Yelena! There are a number of great articles and even books on podcasts/podcasting that have come out in recent years. I hope this selection might be a useful addition to the list:
Berry, Richard. “Part of the Establishment: Reflecting on 10 Years of Podcasting as an Audio Medium.” Convergence: The International Journal of Research into New Media Technologies, vol. 22, no. 6, 2016, pp. 661-71.