“Identification of the degradation of birch forests habitats by lichen species: (On the example of the mountain forest Ubugunt at the station Shatan Batsumber Sumona, Central aimag)”, Mong. J. Bot., vol. 4, no. 30, pp. 11–23, Sep. 2022, doi: 10.5564/mjb.v4i30.2580.