Khiem, L. H., Quan, V. D., Trinh, T. T. M., Frontasieva, M. F., Tien, D. P. T., Nam, L. D., … Thang, D. V. (2019). The Study of Air Pollution of Metal Elements in Hanoi, Hung Yen and Dong Nai Using Barbula Indica Moss. <i>Communications in Physics</i>, <i>29</i>(3SI), 401. https://doi.org/10.15625/0868-3166/29/3SI/14329