Maashaa, D., Agvaantseren, T., Narmandakh, B., Vasili Vasilievich Rubanik and Vasili Vasilievich Rubanik Jr. (2022) “THE INFLUENCE OF ULTRASOUND ACTIVATION ON MICROSTRUCTURE AND HARDNESS OF POROUS Ni-Ti SHAPE MEMORY ALLOYS”, World Science, (5(77). doi: 10.31435/rsglobal_ws/30092022/7863.