A. Pacheco-Sánchez, E. Ramírez-García, L. Rodríguez-Méndez, M.Galaz-Larios., C. Márquez-Beltrán, and M. Enciso-Aguilar, “Microwave noise sources contributions to SiGe:C/Si and InP/InGaAs HBT’s performances”, Rev. Mex. Fís., vol. 59, no. 2, pp. 148–0, Jan. 2013.