Proceedings of the 13th International Scientific and Practical Conference, 2, 88-92, https://doi.org/10.17770/etr2021vol2.6621
Saite uz rakstu brīvpieejā pieejama šeit.
Proceedings of the 13th International Scientific and Practical Conference, 2, 88-92, https://doi.org/10.17770/etr2021vol2.6621
Saite uz rakstu brīvpieejā pieejama šeit.