Korpijärvi , J. (2009). Economical model for maintenance of electric distribution system. Записки Горного института, 181, 105-108. извлечено от https://pmi.spmi.ru/pmi/article/view/7041

Korpijärvi , J. (2009). Economical model for maintenance of electric distribution system. Journal of Mining Institute, 181, 105-108. Retrieved from https://pmi.spmi.ru/pmi/article/view/7041