Pankratov, E, and E Bulaeva. 2015. “About Influence of Buffer Porous Layers Between Epitaxial Layers of Heterostructure on Distributions of Concentrations of Dopants in Heterobipolar Transistors”. The International Journal of Multiphysics 9 (2):109-36. https://doi.org/10.1260/1750-9548.9.2.109.