Preliminary evaluation of anatomical characteristics of four common Mongolian softwoods - Murzabyek Sarkhad; Futoshi Ishiguri; Ikumi Nezu; Haruna Aiso; Agus Ngadianto; Bayasaa Tumenjargal; Bayartsetseg Baasan; Ganbaatar Chultem; Jyunichi Ohshima; Shinso Yokota (Forest Science and Technology, 2022)